Rumen Kozhuharov

Visar 41 publikationer

2016

A D-Band Frequency Sixtupler MMIC With Very Low DC Power Consumption

M. Q. Bao, Rumen Kozhuharov, Herbert Zirath
IEEE Microwave and Wireless Components Letters. Vol. 26 (9), p. 726-728
Artikel i vetenskaplig tidskrift
2014

A D-Band Keyable High Efficiency Frequency Quadrupler

M. Q. Bao, Rumen Kozhuharov, J. J. Chen et al
IEEE Microwave and Wireless Components Letters. Vol. 24 (11), p. 793-795
Artikel i vetenskaplig tidskrift
2014

A High-Speed Power Detector for D-Band Communication

M. Q. Bao, J. J. Chen, Rumen Kozhuharov et al
IEEE Transactions on Microwave Theory and Techniques. Vol. 62 (7), p. 1515-1524
Artikel i vetenskaplig tidskrift
2014

14 Gbps on-off keying modulator and demodulator for D-band communication

M. Bao, J. Chen, Rumen Kozhuharov et al
2014 IEEE International Wireless Symposium (IWS), 24-26 March 2014, X'ian, p. (4 pp)-
Paper i proceeding
2014

A High Power-Efficiency D-Band Frequency Tripler MMIC With Gain Up to 7 dB

M. Q. Bao, Rumen Kozhuharov, Herbert Zirath
IEEE Microwave and Wireless Components Letters. Vol. 24 (2), p. 123-125
Artikel i vetenskaplig tidskrift
2013

An LC VCO for High Power Millimeter-Wave Signal Generation

Szhau Lai, Dan Kuylenstierna, Rumen Kozhuharov et al
35th IEEE Compound Semiconductor Integrated Circuit Symposium: Integrated Circuits in GaAs, InP, SiGe, GaN and Other Compound Semiconductors, CSICS 2013, Monterey, United States, 13-16 October 2013
Paper i proceeding
2013

140-220-GHz DHBT Detectors

Vessen Vassilev, Herbert Zirath, Rumen Kozhuharov et al
IEEE Transactions on Microwave Theory and Techniques. Vol. 61 (6), p. 2353-2360
Artikel i vetenskaplig tidskrift
2013

A novel frequency multiplier

Mingquang Bao, Rumen Kozhuharov
Patent
2012

Multifunction low noise millimeterwave MMICs for remote sensing

Herbert Zirath, Vessen Vassilev, Morteza Abbasi et al
IEEE MTT-S International Microwave Symposium Digest
Paper i proceeding
2012

A W-and G-band MMIC source using InP HBT technology

Rumen Kozhuharov, M. Bao, Marcus Gavell et al
IEEE MTT-S International Microwave Symposium Digest, p. 1 - 3
Paper i proceeding
2011

A varactor model including valanche noise source for VCOs phase noise simulation

Szhau Lai, Dan Kuylenstierna, Iltcho Angelov et al
41th European Microwave Conference , Manchester, UK, Oct 10-13, 2011, p. 591-594
Paper i proceeding
2011

Single-Chip 220-GHz Active Heterodyne Receiver and Transmitter MMICs With On-Chip Integrated Antenna

Morteza Abbasi, Sten Gunnarsson, Niklas Wadefalk et al
IEEE Transactions on Microwave Theory and Techniques. Vol. 59 (2), p. 466-478
Artikel i vetenskaplig tidskrift
2011

Integrated front-ends up to 200 GHz

Vessen Vassilev, Niklas Wadefalk, Morteza Abbasi et al
2011 IEEE MTT-S International Microwave Workshop on Millimeter Wave Integration Technologies, IMWS 2011, Sitges, 15 September 2011 through 16 September 2011, p. 57-60
Paper i proceeding
2010

A large-signal GaAs HBT model optimized for design of low phase-noise VCOs

Szhau Lai, Iltcho Angelov, Dan Kuylenstierna et al
Gigahertz symposium 2010
Paper i proceeding
2010

Gm-boosted balanced Colpitts compared to conventional balanced Colpitts and cross-coupled VCOs in InGaP HBT technology

Szhau Lai, Dan Kuylenstierna, Iltcho Angelov et al
Asia-Pacific Microwave Conference Proceedings, APMC, Yokohama; 7 December through 10 December, p. 386-389
Paper i proceeding
2010

MMIC-Based Components for MM-Wave Instrumentation

Vessen Vassilev, Niklas Wadefalk, Rumen Kozhuharov et al
IEEE Microwave and Wireless Components Letters. Vol. 20 (10), p. 578-580
Artikel i övriga tidskrifter
2010

Low-phase noise InGaP HBT VCO design

Dan Kuylenstierna, Herbert Zirath, Rumen Kozhuharov et al
Gigahertz symposium 2010
Paper i proceeding
2010

Flip-Chip-Based Multichip Module for Low Phase-Noise V -Band Frequency Generation

Li-Han Hsu, Dan Kuylenstierna, Rumen Kozhuharov et al
IEEE Transactions on Microwave Theory and Techniques. Vol. 58 (9), p. 2408-2419
Artikel i övriga tidskrifter
2010

MMIC-based receivers for mm-wave radiometry

Vessen Vassilev, Niklas Wadefalk, Rumen Kozhuharov et al
IRMMW-THz 2010 - 35th International Conference on Infrared, Millimeter, and Terahertz Waves, Conference Guide
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2009

Low phase noise MMIC oscillators in InGaP HBT technology

Dan Kuylenstierna, Herbert Zirath, Rumen Kozhuharov et al
Microwave Conference, 2008. APMC 2008. Asia-Pacific, Macau, 16-20 Dec. 2008, p. (4 pages)-
Paper i proceeding
2009

A Broadband 60-to-120 GHz single-chip MMIC multiplier chain

Morteza Abbasi, Rumen Kozhuharov, Camilla Kärnfelt et al
IEEE MTT-S International Microwave Symposium Digest, p. 441-444
Paper i proceeding
2009

On the status of Low Noise Millimeterwave MMIC Receivers

Herbert Zirath, Niklas Wadefalk, Rumen Kozhuharov et al
APMC: 2009 ASIA PACIFIC MICROWAVE CONFERENCE. Vol. 1-5, p. 1303-1306
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2009

Single-Chip Frequency Multiplier Chains for Millimeter-Wave Signal Generation

Morteza Abbasi, Rumen Kozhuharov, Camilla Kärnfelt et al
IEEE Transactions on Microwave Theory and Techniques. Vol. 57 (12), p. 3134-3142
Artikel i vetenskaplig tidskrift
2009

A Generic, Multi-Purpose, and Small-Size 60 GHz Transmit/Receive Module used for Secure WLAN Communication

Sten Gunnarsson, Christer Stoij, Camilla Kärnfelt et al
Microwave Conference, 2008. APMC 2008. Asia-Pacific, Macau, 16-20 Dec. 2008, p. paper A1-29 (4 pages)
Paper i proceeding
2009

24 GHz InGaP-GaAs HBT push-push VCO with broadband tuning range

Rumen Kozhuharov, Dan Kuylenstierna, Herbert Zirath
Proceedings of the 4th European Microwave Integrated Circuits Conference, p. 242-245
Paper i proceeding
2008

A Single-Chip 53 GHz Radiometer Front-End MMIC for Geostationary Atmospheric Measurements

Sten Gunnarsson, Anders Emrich, Herbert Zirath et al
2008 IEEE Radio and Wireless Symposium, RWS; Orlando, FL; United States; 22 January 2008 through 24 January 2008, p. 867-870
Paper i proceeding
2007

Newly developed chip sets for 60 GHz radio communication systems

Herbert Zirath, Mattias Ferndahl, Rumen Kozhuharov et al
IEEE International Workshop on Radio-Frequency Integration Technology, RFIT 2007; Singapore; Singapore; 9 December 2007 through 11 December 2007, p. 102-106
Paper i proceeding
2007

60 GHz Single-Chip Front-End MMICs and Systems for Multi-Gbps Wireless Communication

Sten Gunnarsson, Camilla Kärnfelt, Herbert Zirath et al
IEEE Journal of Solid-State Circuits. Vol. 42 (5), p. 1143 - 1157
Artikel i vetenskaplig tidskrift
2006

High Purity 60 GHz-Band Single Chip

Camilla Kärnfelt, Rumen Kozhuharov, Herbert Zirath et al
IEEE Transactions on Microwave Theory and Techniques. Vol. 54 (6), p. 2887-2898
Artikel i vetenskaplig tidskrift
2006

Multifunctional MMIC design and antenna integration

Camilla Kärnfelt, Sten Gunnarsson, Herbert Zirath et al
Abstract book WOCSDICE 2006. Vol. 1 (1), p. 109-111
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2006

Single-Chip 60 GHz Transmitter and Receiver MMICs in a GaAs mHEMT Technology

Sten Gunnarsson, Camilla Kärnfelt, Herbert Zirath et al
Proceedings of IEEE MTT-S International Microwave Symposium, 11-16 June, 2006, p. 801-804
Paper i proceeding
2006

Development of 60 GHz front end circuits for high data rate communication systems at Chalmers University

Herbert Zirath, Mattias Ferndahl, Rumen Kozhuharov et al
Chung-kuo Kung Cheng Hsueh Kan/Journal of the Chinese Institute of Engineers. Vol. 29 (7), p. 1173-1183
Artikel i vetenskaplig tidskrift
2006

Single-Chip 24-GHz Synthesizer for a Radar Application

Rumen Kozhuharov, Anders Jirskog, Niklas Penndal et al
Technical Digest of 2006 IEEE CSIC Symposium San Antonio, TX, USA, p. 205 - 208
Artikel i vetenskaplig tidskrift
2005

’Development of 60-GHz front-end circuits for a high-data-rate communication system

Herbert Zirath, Rumen Kozhuharov, Mattias Ferndahl
IEEE Journal of Solid-State Circuits. Vol. 40 (10), p. 2077-2086
Artikel i vetenskaplig tidskrift
2005

A high purity 60 GHz single chip X8 multiplier with low phase noise

Camilla Kärnfelt, Rumen Kozhuharov, Herbert Zirath
Proceedings of Europeean Microwave Week, GAAS 2005. Vol. 1 (1), p. 253-256
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2005

Single-Chip 60 GHz Transmitter and Receiver MMICs for Very High Speed (several Gigabit/s) Wireless Transmission

Sten Gunnarsson, Camilla Kärnfelt, Herbert Zirath et al
GigaHertz 2005
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2005

Balanced Colpitt Oscillator MMICs Designed for Ultra-Low Phase Noise

Herbert Zirath, Rumen Kozhuharov, Mattias Ferndahl
Journal of Solid State Circuits. Vol. 40 (10), p. 2077-89
Artikel i vetenskaplig tidskrift
2005

Highly Integrated 60 GHz Transmitter and Receiver MMICs in a GaAs pHEMT Technology

Sten Gunnarsson, Camilla Kärnfelt, Herbert Zirath et al
IEEE Journal of Solid-State Circuits
Artikel i vetenskaplig tidskrift
2005

V-band Single Chip Mutipliers.

Rumen Kozhuharov, Camilla Kärnfelt, Herbert Zirath
GigaHertz 2005, p. 230-233
Poster (konferens)
2004

Development of 60-GHz Front -End Circuits for a High-Data-Rate Communication System.

Herbert Zirath, Toru Masuda, Rumen Kozhuharov et al
IEEE Journal of Solid-State Circuits. Vol. 39 (10), p. 1640-1649
Artikel i vetenskaplig tidskrift
2003

A 55 GHz HEMT Monolithic Voltage Controlled Sources

Rumen Kozhuharov, Toru Masuda, Herbert Zirath
25-th GaAs IC Symposium 2003, p. 259 -262
Paper i proceeding

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