Slot Array Antennas at V-band based on Inverted Microstrip Gap Waveguide
Licentiatavhandling, 2017

Recently, gap waveguide technology is introduced as a proper guiding structure for millimeter-systems. The conception of gap waveguide technology can be modeled for theoretical analysis by two parallel plates, a top perfect electric conductor layer and a bottom perfect magnetic conductor layer. This structure stops all modes propagating in all directions except for a quasi-TEM mode when the gap between perfect electric conductor and perfect magnetic conductor plates is smaller than quarter wavelength at an operating frequency. Until now there are already four different visions of this novel conception-groove, ridge, inverted microstrip and microstrip ridge gap waveguides. Among those four structures, the inverted microstrip gap waveguide has same obvious advantages. First of all, it has a uniform bed of nails while the others do not. This uniform pin structure makes the fabrication much easier and cheaper. Secondly, fabrication of microstrip circuitry on PCB by etching is accurate and very low cost. In addition, theories and design principles of microstrip technologies are very well-developed. Therefore, my work in this Lic. thesis is focusing on the theory of inverted microstrip gap waveguide and its applications on millimeter wave array antenna design.

inverted microstrip gap waveguide

metallic pins

perfect magnetic conductor

slots array and variational method

EE Classroom Chalmers University of Technology
Opponent: Eva Rajo-Iglesias


Jinlin Liu

Chalmers, Signaler och system, Kommunikations- och antennsystem, Antennsystem

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

International Symposium on Antennas and Propagation (ISAP),; (2016)

Paper i proceeding

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

2016 Global Symposium on Millimeter Waves, GSMM 2016 and ESA Workshop on Millimetre-Wave Technology and Applications, Espoo, Finland, 6-8 June 2016,; (2016)p. 131-134

Paper i proceeding

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

10th European Conference on Antennas and Propagation, EuCAP 2016,; (2016)

Paper i proceeding

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

2016 International Symposium on Antennas and Propagation (ISAP),; (2017)p. 760-761

Paper i proceeding

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

IEEE Transactions on Antennas and Propagation,; Vol. 65(2017)p. 2117-2122

Artikel i vetenskaplig tidskrift


Informations- och kommunikationsteknik


Rymd- och flygteknik

Annan elektroteknik och elektronik

Den kondenserade materiens fysik


Chalmers tekniska högskola

EE Classroom Chalmers University of Technology

Opponent: Eva Rajo-Iglesias

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