Ashraf Uz Zaman

Forskarassistent vid Chalmers, Elektroteknik, Kommunikationssystem, informationsteori och antenner, Antennsystem

Ashraf Uz Zaman är forskarassistent i forskargruppen Antennsystem.

Källa: chalmers.se

Visar 93 publikationer

2018

140 GHz Planar Gap Waveguide Array Antenna for Line of Sight (LOS) MIMO Backhaul Links

Ashraf Uz Zaman, Sofia Rahiminejad, Thomas Eriksson et al
EuCAP
Paper i proceeding
2018

Bandwidth Investigation on Half-Height Pin in Ridge Gap Waveguide

Fangfang Fan, Jian Yang, Vessen Vassilev et al
IEEE Transactions on Antennas and Propagation. Vol. 66 (1), p. 100-108
Artikel i vetenskaplig tidskrift
2018

An Integrated Ka-Band Diplexer-Antenna Array Module Based on Gap Waveguide Technology With Simple Mechanical Assembly and No Electrical Contact Requirements

Abbas Vosoogh, Milad Sharifi Sorkherizi, Ashraf Uz Zaman et al
IEEE Transactions on Microwave Theory and Techniques. Vol. 66 (2)
Artikel i vetenskaplig tidskrift
2018

A mmWave Wideband Slot Array Antenna Based on Ridge Gap Waveguide With 30% Bandwidth

Ali Farahbakhsh, Davood Zarifi, Ashraf Uz Zaman
IEEE Transactions on Antennas and Propagation. Vol. 66 (2), p. 1008-1013
Artikel i vetenskaplig tidskrift
2017

Ridge gap waveguide slot antenna array with 30% bandwidth for 60-GHz applications

A. Farahbakhsh, D. Zarifi, Ashraf Uz Zaman
2017 11th European Conference on Antennas and Propagation, EUCAP 2017, p. 3050-3052
Paper i proceeding
2017

Novel Low-Loss Millimeter- Wave Transition From Waveguide-to-Microstrip Line Suitable for MMIC Integration and Packaging

Ashraf Uz Zaman, Vessen Vassilev, Herbert Zirath et al
IEEE Microwave and Wireless Components Letters. Vol. 27 (12), p. 1098-1100
Artikel i vetenskaplig tidskrift
2017

A Wideband Contactless and Bondwire-Free MMIC to Waveguide Transition

Alhassan Aljarosha, Ashraf Uz Zaman, Rob Maaskant
IEEE Microwave and Wireless Components Letters. Vol. 27 (5), p. 437-439
Artikel i vetenskaplig tidskrift
2017

A dual-polarized slotted-waveguide antenna based on gap waveguide technology

M. Ferrando-Rocher, Ashraf Uz Zaman, Jian Yang et al
2017 11th European Conference on Antennas and Propagation, EUCAP 2017, p. 3726-3727
Paper i proceeding
2017

A High-Gain High-Efficiency Corporate-Fed Slot Array Antenna directly Fed by Ridge Gap Waveguide at 60-GHz

Jinlin Liu, Abbas Vosoogh, Ashraf Uz Zaman et al
2017 International Symposium on Antennas and Propagation (ISAP)
Paper i proceeding
2017

Millimeter wave contactless microstrip-gap waveguide transition suitable for integration of RF MMIC with gap waveguide array antenna

Uttam Nandi, Ashraf Uz Zaman, Abbas Vosoogh et al
2017 11th European Conference on Antennas and Propagation, EUCAP 2017, p. 1682-1684
Paper i proceeding
2017

Pick and place assembly technique for fabrication of groove gapwaveguide resonator

Sadia Farjana, Ashraf Uz Zaman, Peter Enoksson
Journal of Physics: Conference Series. Vol. 922 (1)
Paper i proceeding
2017

Slot Antenna Array Unit Cell Directly Fed by Inverted Microstrip Gap Waveguide

Jinlin Liu, Abbas Vosoogh, Ashraf Uz Zaman et al
2017 International Symposium on Antennas and Propagation (ISAP)
Paper i proceeding
2017

Diplexer integration into a Ka-band high-gain gap waveguide corporate-fed slot array antenna

Abbas Vosoogh, Milad Sharifi Sorkherizi, Ashraf Uz Zaman et al
2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
Paper i proceeding
2017

A Ridge Gap Waveguide fed apperture-coupled microstrip antenna array for 60 GHz applications

D. Zarifi, A. Farahbakhsh, Ashraf Uz Zaman
2017 11th European Conference on Antennas and Propagation, EUCAP 2017, p. 953-955
Paper i proceeding
2017

A GapWaveguide-Fed Wideband Patch Antenna Array for 60-GHz Applications

D. Zarifi, A. Farahbakhsh, Ashraf Uz Zaman
IEEE Transactions on Antennas and Propagation. Vol. 65 (9), p. 4875-4879
Artikel i vetenskaplig tidskrift
2017

60-GHz Groove Gap Waveguide Based Wideband H-Plane Power Dividers and Transitions: For Use in High-Gain Slot Array Antenna

A. Farahbakhsh, D. Zarifi, Ashraf Uz Zaman
IEEE Transactions on Microwave Theory and Techniques. Vol. 65 (11), p. 4111-4121
Artikel i vetenskaplig tidskrift
2017

Novel Millimeter Wave Transition From Microstrip Line to Groove Gap Waveguide for MMIC Packaging and Antenna Integration

Uttam Nandi, Ashraf Uz Zaman, Abbas Vosoogh et al
IEEE Microwave and Wireless Components Letters. Vol. 27 (8), p. 691-693
Artikel i vetenskaplig tidskrift
2017

Realisation of carved and iris groove gap waveguide filter and E-plane diplexer for V-band radio link application

M. Rezaee, Ashraf Uz Zaman
IET Microwaves, Antennas and Propagation. Vol. 11 (15), p. 2109-2115
Artikel i vetenskaplig tidskrift
2017

Design and Fabrication of a High Gain 60-GHz Cavity-backed Slot Antenna Array fed by Inverted Microstrip Gap Waveguide

Jinlin Liu, Abbas Vosoogh, Ashraf Uz Zaman et al
IEEE Transactions on Antennas and Propagation. Vol. 65 (4), p. 2117-2122
Artikel i vetenskaplig tidskrift
2017

Wideband cavity-backed slot subarray with gap waveguide feed-network for D-band applications

Abbas Vosoogh, Ashraf Uz Zaman, Vessen Vassilev
2017 11th European Conference on Antennas and Propagation, EUCAP 2017, p. 207-209
Paper i proceeding
2017

An E-band Antenna-diplexer Compact Integrated Solution Based on Gap Waveguide Technology

Abbas Vosoogh, Milad Sharifi Sorkherizi, Ashraf Uz Zaman et al
2017 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP 2017)
Paper i proceeding
2016

Different gap waveguide slot array configurations for mmwave fixed beam antenna application

Ashraf Uz Zaman, Per-Simon Kildal
10th European Conference on Antennas and Propagation, EuCAP 2016; Davos; Switzerland; 10 April 2016 through 15 April 2016, p. Art. no. 7481541-
Paper i proceeding
2016

Micromachined Linear Slot Array Antenna for 100 GHz with 10 dB Gain Using GAP Waveguide Technology

Sofia Rahiminejad, Ashraf Uz Zaman, Sjoerd Haasl et al
10th European Conference on Antennas and Propagation (EUCAP 2016)
Paper i proceeding
2016

Demonstration of a micromachined planar distribution network in gap waveguide technology for a linear slot array antenna at 100 GHz

Sofia Rahiminejad, Ashraf Uz Zaman, Sjoerd Haasl et al
Journal of Micromechanics and Microengineering. Vol. 26 (7), p. Art. no. 074001-
Artikel i vetenskaplig tidskrift
2016

Mm-Wave contactless connection for MMIC integration in gap waveguides

Alhassan Aljarosha, Rob Maaskant, Ashraf Uz Zaman et al
2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016, Fajardo, Puerto Rico, 26 June - 1 July 2016, p. 253-254
Paper i proceeding
2016

Design of a double layer cavity backed slot array antenna in gap waveguide technology

Peiye Liu, Ashraf Uz Zaman, Per-Simon Kildal
21st International Symposium on Antennas and Propagation, ISAP 2016, Okinawa, Japan, 24-28 October 2016, p. 682-683
Paper i proceeding
2016

Design of 8 × 8 Slot Array Antenna based on Inverted Microstrip Gap Waveguide

Jinlin Liu, Abbas Vosoogh, Ashraf Uz Zaman et al
2016 International Symposium on Antennas and Propagation (ISAP), p. 760-761
Paper i proceeding
2016

GAP waveguides

Ashraf Uz Zaman, Per-Simon Kildal
Handbook of Antenna Technologies. Vol. 4, p. 3273-3347
Kapitel i bok
2016

Corporate distribution networks for slot array antenna based on groove gap waveguide technology

A. Farahbakhsh, D. Zarifi, Ashraf Uz Zaman et al
10th European Conference on Antennas and Propagation, EuCAP 2016, Davos, Switzerland, 10-15 April 2016, p. Art. no. 7481157-
Paper i proceeding
2016

Design and Fabrication of a High-Gain 60-GHz Corrugated Slot Antenna Array With Ridge Gap Waveguide Distribution Layer

D. Zarifi, A. Farahbakhsh, Ashraf Uz Zaman et al
IEEE Transactions on Antennas and Propagation. Vol. 64 (7), p. 2905-2913
Artikel i vetenskaplig tidskrift
2016

W-band spatial power combiner and splitter in gap waveguide technology

Waqar Ali Shah, Rob Maaskant, Ashraf Uz Zaman et al
2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016, Fajardo, Puerto Rico, 26 June - 1 July 2016, p. 255-256
Paper i proceeding
2016

Optimizing the numerical port for inverted microstrip gap waveguide in full-wave simulators

Jinlin Liu, Ashraf Uz Zaman, Per-Simon Kildal
10th European Conference on Antennas and Propagation, EuCAP 2016
Paper i proceeding
2016

A high gain ridge gap waveguide fed slot antenna array for 60 GHz applications

D. Zarifi, A. Farahbakhsh, Ashraf Uz Zaman et al
10th European Conference on Antennas and Propagation, EuCAP 2016; Davos; Switzerland; 10 April 2016 through 15 April 2016, p. Art. no. 7481703-
Paper i proceeding
2016

Design of transition from WR-15 to inverted microstrip gap waveguide

Jinlin Liu, Ashraf Uz Zaman, Per-Simon Kildal
2016 Global Symposium on Millimeter Waves, GSMM 2016 and ESA Workshop on Millimetre-Wave Technology and Applications, Espoo, Finland, 6-8 June 2016, p. 131-134
Paper i proceeding
2016

Spatial Power Combining and Splitting in Gap Waveguide Technology

Rob Maaskant, Waqar Ali Shah, Ashraf Uz Zaman et al
IEEE Microwave and Wireless Components Letters. Vol. 26 (7), p. 472-474
Artikel i vetenskaplig tidskrift
2016

Millimeter Wave E-Plane Transition From Waveguide to Microstrip Line With Large Substrate Size Related to MMIC Integration

Ashraf Uz Zaman, Vessen Vassilev, Per-Simon Kildal et al
IEEE Microwave and Wireless Components Letters. Vol. 26 (7), p. 481-483
Artikel i vetenskaplig tidskrift
2016

E-band 3-D metal printed wideband planar horn array antenna

Abbas Vosoogh, Per-Simon Kildal, Vessen Vassilev et al
21st International Symposium on Antennas and Propagation, ISAP 2016, Okinawa, Japan, 24-28 October 2016, p. 304-305
Paper i proceeding
2016

In memory of Professor Per-Simon Kildal

Arne Svensson, Jan Carlsson, John Conway et al
IEEE Antennas and Propagation Magazine. Vol. 58 (4), p. 116-117
Artikel i övriga tidskrifter
2015

A New 2x2 Microstrip Patch Sub-array for 60GHz Wideband Planar Antenna with Ridge Gap Waveguide Distribution Layer

Ashraf Uz Zaman, Per-Simon Kildal
9th European Conference on Antennas and Propagation, EuCAP 2015, Lisbon, Portugal, 13-17 May 2015
Paper i proceeding
2015

A groove gap Waveguide Iris Filter for V-band Application

Morteza Rezaee, Ashraf Uz Zaman, Per-Simon Kildal
23rd Iranian Conference on Electrical Engineering (ICEE), 2015, p. 462-465
Paper i proceeding
2015

V-Band Groove Gap Waveguide Diplexer

Morteza Rezaee, Ashraf Uz Zaman, Per-Simon Kildal
9th European Conference on Antennas and Propagation, EuCAP 2015, Lisbon, Portugal, 13-17 May 2015, p. 1-4
Paper i proceeding
2015

Design of a Cavity-backed Slot Array Unit Cell on Inverted Microstrip Gap Waveguide

Jinlin Liu, Abbas Vosoogh, Ashraf Uz Zaman et al
International Symposium on Antennas and Propagation (ISAP)
Paper i proceeding
2014

MICROMACHINED GAP WAVEGUIDE DEVICES FOR ABOVE 100 GHZ

Sofia Rahiminejad, Elena Pucci, Ashraf Uz Zaman et al
10TH MICRONANO SYSTEM WORKSHOP
Paper i proceeding
2014

60GHz Slot-Array Antenna Design Based on Gap Waveguide Cavity and Gap Waveguide Feed

Ashraf Uz Zaman, Per-Simon Kildal
Paper i proceeding
2014

Gap Waveguide PMC Packaging for Improved Isolation of Circuit Components in High-Frequency Microwave Modules

Ashraf Uz Zaman, Mats Alexanderson, Tin Vukusic et al
IEEE Transactions on Components, Packaging and Manufacturing Technology. Vol. 4 (1), p. 16-25
Artikel i vetenskaplig tidskrift
2014

Prospective new PMC based gap waveguide shielding for microwave modules

Ashraf Uz Zaman, Eva Rajo, Per-Simon Kildal
IEEE International Symposium on Electromagnetic Compatibility, EMC Europe 2014; Swedish Exhibition and Congress CentreGothenburg; Sweden; 1 September 2014 through 4 September 2014, p. 459-463
Paper i proceeding
2014

Wide-Band Slot Antenna Arrays With Single-Layer Corporate-Feed Network in Ridge Gap Waveguide Technology

Ashraf Uz Zaman, Per-Simon Kildal
IEEE Transactions on Antennas and Propagation. Vol. 62 (6), p. 2992-3001
Artikel i vetenskaplig tidskrift
2014

Micromachined gap waveguide devices for above 100 GHz

Sofia Rahiminejad, Elena Pucci, Ashraf Uz Zaman et al
Swedish Microwave Days March 11-12, 2014
Paper i proceeding
2013

Ka-Band Gap Waveguide Coupled-Resonator Filter for Radio Link Diplexer Application

Esperanza Alfonso Alos, Ashraf Uz Zaman, Per-Simon Kildal
IEEE Transactions on Components, Packaging and Manufacturing Technology. Vol. 3 (5), p. 870-879
Artikel i vetenskaplig tidskrift
2013

Linear slot array design in ridge gap waveguide technology

Ashraf Uz Zaman, Per-Simon Kildal
7th European Conference on Antennas and Propagation, EuCAP 2013, Gothenburg, Sweden, 8-12 April 2013
Paper i proceeding
2013

Micromachined gap waveguides for 100 GHz applications

Sofia Rahiminejad, Syed Hasan Raza Zaidi, Ashraf Uz Zaman et al
2013 7th European Conference on Antennas and Propagation, EuCAP 2013, p. 1935-1938
Paper i proceeding
2013

Micromachined Groove Gap Waveguides for 100 GHz applications

Sofia Rahiminejad, Syed Hasan Raza Zaidi, Ashraf Uz Zaman et al
7th European Conference on Antennas and Propagation, EuCAP 2013, Gothenburg, Sweden, 8-12 April 2013
Paper i proceeding
2013

Packaging of MMIC by using gap waveguide and design of a microstrip to ridge gap waveguide transition

Ashraf Uz Zaman, Per-Simon Kildal
2013 3rd Asia-Pacific Microwave Conference, APMC 2013; Seoul; South Korea; 5 November 2013 through 8 November 2013, p. 10-12
Paper i proceeding
2013

SU8 Ridge Gap Resonator

Sofia Rahiminejad, Elena Pucci, Ashraf Uz Zaman et al
MEMSWAVE, 2013, Potsdam, Germany
Paper i proceeding
2013

Ku band linear slot-array in ridge gapwaveguide technology

Ashraf Uz Zaman, Per-Simon Kildal
2013 7th European Conference on Antennas and Propagation, EuCAP 2013, p. 3078-3081
Paper i proceeding
2013

Design of a simple transition from microstrip to ridge gap waveguide suited for MMIC and antenna integration

Ashraf Uz Zaman, Tin Vukusic, Mats Alexanderson et al
IEEE Antennas and Wireless Propagation Letters. Vol. 12, p. 1558 - 1561
Artikel i vetenskaplig tidskrift
2013

Study of Q-Factors of Ridge and Groove Gap Waveguide Resonators

Elena Pucci, Ashraf Uz Zaman, Eva Rajo et al
IET Microwaves, Antennas and Propagation. Vol. 7 (11), p. 900-908
Artikel i vetenskaplig tidskrift
2012

Numerical Prepackaging with PMC Lid - Efficient and Simple Design Procedure for Microstrip Circuits Including the Packaging

A. Kishk, Ashraf Uz Zaman, Per-Simon Kildal
Applied Computational Electromagnetics Society Journal. Vol. 27 (5), p. 389-398
Artikel i vetenskaplig tidskrift
2012

Slot antenna in ridge gap waveguide technology

Ashraf Uz Zaman, Per-Simon Kildal
Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012. Prague, 26-30 March 2012, p. 3243-3244
Paper i proceeding
2012

Investigation of a Microstrip-to-Ridge Gap Waveguide transition by electromagnetic coupling

Astrid Algaba Brazalez, Ashraf Uz Zaman, Per-Simon Kildal
IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), p. 1-2
Paper i proceeding
2012

Design of a coplanar waveguide-to-ridge gap waveguide transition via capacitive coupling

Astrid Algaba Brazalez, Ashraf Uz Zaman, Per-Simon Kildal
Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012. Prague, 26-30 March 2012, p. 3524-3528
Paper i proceeding
2012

Narrow-Band Microwave Filter Using High-Q Groove Gap Waveguide Resonators With Manufacturing Flexibility and No Sidewalls

Ashraf Uz Zaman, Per-Simon Kildal, A. A. Kishk
IEEE Transactions on Components, Packaging and Manufacturing Technology. Vol. 2 (11), p. 1882-1889
Artikel i vetenskaplig tidskrift
2012

Metamatrial based packaging method for improved isolation of circuit elements in microwave modules

Ashraf Uz Zaman, Mubarak Ellis, Per-Simon Kildal
7th European Microwave Integrated Circuits Conference, EuMIC 2012 - Held as Part of 15th European Microwave Week, EuMW 2012; Amsterdam; Netherlands; 29 October 2012 through 30 October 2012, p. 834-837
Paper i proceeding
2012

Bed of Springs for Packaging of Microstrip Circuits in the Microwave Frequency Range

Eva Rajo, Per-Simon Kildal, Ashraf Uz Zaman et al
IEEE Transactions on Components, Packaging and Manufacturing Technology. Vol. 2 (10), p. 1623-1628
Artikel i vetenskaplig tidskrift
2012

Micromachined Ridge Gap Waveguide and Resonator for Millimeter-Wave Applications

Sofia Rahiminejad, Ashraf Uz Zaman, Elena Pucci et al
Sensors and Actuators, A: Physical. Vol. 186 (Special Issue: SI), p. 264-269
Artikel i vetenskaplig tidskrift
2012

Gap waveguide components for millimeter-wave systems. Couplers, filters, antennas, MMIC packaging

Esperanza Alfonso Alos, Ashraf Uz Zaman, Elena Pucci et al
International Symposium on Antennas and Propagation, ISAP 2012, Oct 29-Nov. 2 2012, Nagoya, Japan, p. 243-246
Paper i proceeding
2012

Improved Microstrip Filters Using PMC Packaging by Lid of Nails

Astrid Algaba Brazalez, Ashraf Uz Zaman, Per-Simon Kildal
IEEE Transactions on Components, Packaging and Manufacturing Technology. Vol. 2 (7), p. 1075-1084
Artikel i vetenskaplig tidskrift
2012

Micromachined Ridge Gap Waveguide and Resonator for 220-325 GHz

Sofia Rahiminejad, Ashraf Uz Zaman, Elena Pucci et al
Micronano Systems Workshop
Poster (konferens)
2011

Progress report on developing metamaterial EBG-based gap waveguide components and packaging solutions between 1 GHz and several 100 Ghz

Per-Simon Kildal, Ashraf Uz Zaman, Eva Rajo et al
URSI National Radio Science Meeting, Spokane, USA, 3-8 July, 2011
Paper i proceeding
2011

New low loss inverted microstrip line using gap waveguide technology for slot antenna applications

Elena Pucci, Ashraf Uz Zaman, Eva Rajo et al
Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011. Rome, 11-15 April 2011, p. 979-982
Paper i proceeding
2011

Micromachined ridge gap waveguide for sub millimeter and millimeter wave applications

Sofia Rahiminejad, Ashraf Uz Zaman, Elena Pucci et al
MME 2011: 22nd Micromechanics and Micro Systems Europe Workshop, June 19-22, 2011, Toensberg, Norway
Paper i proceeding
2011

Design and experimental verification of ridge gap waveguides in bed of nails for parallel plate mode suppression

Per-Simon Kildal, Ashraf Uz Zaman, Eva Rajo et al
IET Microwaves, Antennas and Propagation. Vol. 5 (3), p. 262-270
Artikel i vetenskaplig tidskrift
2011

Design of Band-Pass Filter Using Gap Waveguide Technology

Ashraf Uz Zaman, Astrid Algaba Brazalez, Per-Simon Kildal
Millimetre Wave Days, 23-25 May 2011, Espoo Finland (6th ESA Workshop on Millimetre-Wave Technology and Applications and 4th Global Symposium on Millimeter Waves)
Paper i proceeding
2011

Design of Micromachined Ridge Gap Waveguides for Millimeter-Wave Applications

Sofia Rahiminejad, Ashraf Uz Zaman, Elena Pucci et al
Proc. Eurosensors XXV, September 4-7, 2011, Athens, Greece. Vol. 25, p. 519-522
Paper i proceeding
2011

Improving microstrip filters with gap waveguide packaging

Astrid Algaba Brazalez, Ashraf Uz Zaman, Elena Pucci et al
Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011. Rome, 11-15 April 2011, p. 1080-1084
Paper i proceeding
2011

Increasing parallel plate stop-band in gap waveguides using inverted pyramid-shaped nails for slot array application above 60GHz

Ashraf Uz Zaman, Vessen Vassilev, Per-Simon Kildal et al
Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011. Rome, 11-15 April 2011, p. 2254-2257
Paper i proceeding
2010

Validation of ridge gap waveguide performance using in-house TRL calibration kit

Ashraf Uz Zaman, Per-Simon Kildal, Mattias Ferndahl et al
EuCAP 2010 Fourth European Conference on Antennas and Propagation, Barcelona, 12-16 April 2010
Paper i proceeding
2010

Packaging of microstrip circuits using gap waveguide approach

Eva Rajo, Ashraf Uz Zaman, Per-Simon Kildal et al
Gigahertz Symposium 2010, Lund University, 9-10 March 2010
Paper i proceeding
2010

Design of cryogenic 2-14 GHz Eleven feed for reflector antennas for future radio telescopes

Jian Yang, Miroslav Pantaleev, Per-Simon Kildal et al
Gigahertz Symposium 2010, Lund University, 9-10 March 2010
Paper i proceeding
2010

Concept of gap waveguide and measured results for first demonstrator

Ashraf Uz Zaman, Per-Simon Kildal, Eva Rajo et al
Gigahertz Symposium 2010, Lund University, 9-10 March 2010
Paper i proceeding
2010

Using lid of pins for packaging of microstrip board for descrambling the ports of Eleven antenna for radio telescope applications

Ashraf Uz Zaman, Jian Yang, Per-Simon Kildal
2010 IEEE International Symposium on Antennas and Propagation, Toronto, July 11-17, 2010
Paper i proceeding
2010

Losses in ridge gap waveguide compared with rectangular waveguide and microstrip lines

Elena Pucci, Ashraf Uz Zaman, Eva Rajo et al
EuCAP 2010 Fourth European Conference on Antennas and Propagation, Barcelona, 12-16 April 2010
Paper i proceeding
2010

Q-factor comparisons between new gap waveguide technology and standard rectangular waveguide

Elena Pucci, Ashraf Uz Zaman, Eva Rajo et al
Gigahertz Symposium 2010, Lund University, 9-10 March 2010
Paper i proceeding
2010

Cryogenic 2-14GHz low noise receiver for radio astronomy using Eleven feed

Miroslav Pantaleev, Jian Yang, Per-Simon Kildal et al
Gigahertz Symposium 2010, Lund University, 9-10 March 2010
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2010

Cryogenic integration of 2-14 GHz Eleven Feed in wideband receiver for VLBI 2010

Miroslav Pantaleev, Jian Yang, Yogesh Karandikar et al
Sixth IVS General Meeting (International VLBI Service for Geodesy and Astrometry), February 7-13, 2010, Hobart, TAS, Australia, p. 415-419
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2009

Parallel plate cavity mode suppression in microstrip circuit packages using a lid of nails

Eva Rajo, Ashraf Uz Zaman, Per-Simon Kildal
IEEE Microwave and Wireless Components Letters. Vol. 20 (1), p. 31-33
Artikel i vetenskaplig tidskrift
2009

Design of Transitions and Calibration Kit in New Wideband Metamaterial-based Gap Waveguide Transmission Line Technology For Millimeter and Submillimeter Waves

Ashraf Uz Zaman, Eva Rajo, Elena Pucci et al
Joint 5th ESA Workshop on Millimetre Wave Technology and Applications and 31st ESA Antenna Workshop on “Millimetre and sub-millimetre waves - From technologies to systems”, 18 - 20 May 2009, ESTEC, Noordwijk, The Netherlands
Paper i proceeding
2009

Design of Transition from Coaxial Line to Ridge Gap Waveguide

Ashraf Uz Zaman, Eva Rajo, E. Alfonso et al
2009 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2009; North Charleston, SC; United States; 1 June 2009 through 5 June 2009
Paper i proceeding
2009

Wideband, lowloss, low-cost, quasi-TEM metamaterial-based local waveguides in air gaps between parallel metal plates

Per-Simon Kildal, Eva Rajo, E. Alfonso et al
International Conference on Electromagnetics in Advanced Applications (ICEAA 2009), Torino, Italy, September 14-18, 2009. Vol. 1-2, p. 565-568
Paper i proceeding
2009

Alternative ridge gap waveguide design using a mushroom-type EBG surface

Eva Rajo, Ashraf Uz Zaman, E. Alfonso et al
IEEE AP-S International Symposium on Antennas and Propagation, Charleston, USA, June 1-5, 2009
Paper i proceeding
2007

Dual polarised microstrip patch antenna with high port isolation

Ashraf Uz Zaman, Lars Manholm, Anders Derneryd
Electronics Letters. Vol. 43 (10), p. 551-552
Artikel i vetenskaplig tidskrift

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Projekt

2017–2019

SmartBowtie: PCB/LTCC/silikon baserad UWB mm-Wave Smart Capped Bowtie Gruppantenn för 5G kommunikationssystem

Jian Yang Antennsystem
Ashraf Uz Zaman Antennsystem
Zhongxia Simon He Mikrovågselektronik
Vessen Vassilev Mikrovågselektronik
VINNOVA

Det kan finnas fler projekt där Ashraf Uz Zaman medverkar, men du måste vara inloggad som anställd på Chalmers för att kunna se dem.