Evaluation of losses in microstrip gap waveguide for slot antennas applications

Author

Pucci, Elena ; Kildal, Per-Simon ; Rajo-Iglesias, Eva

Author_Institution

Dept. of Signals & Syst., Chalmers Univ. of Technol., Gothenburg, Sweden

fYear

2012

fDate

8-14 July 2012

Firstpage

1

Lastpage

2

Abstract

The new microstrip gap waveguide supports a quasi-TEM mode in the air by the use of artificial magnetic conductors which force the field to travel in the air rather than in the substrate. This paper presents an evaluation of losses by measuring the Q-factor of a resonator made in this technology, made using a mushroom-type EBG surface. Losses are crucial when using printed circuits to feed slot antennas, thereby motivating this work. Comparisons with standard microstrip lines will be provided, showing promising results.

Keywords

antenna feeds; losses; magnetic circuits; microstrip antennas; microstrip lines; optical resonators; photonic band gap; printed circuits; slot antennas; Q-factor measurement; artificial magnetic conductor; loss evaluation; microstrip gap waveguide; mushroom-type EBG surface; printed circuit; quasiTEM mode; resonator; slot antenna feed application; standard microstrip line; Microstrip; Microstrip antenna arrays; Microstrip antennas; Microwave antennas; Slot antennas; Transmission line measurements; Waveguide discontinuities;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE

Conference_Location

Chicago, IL

ISSN

1522-3965

Print_ISBN

978-1-4673-0461-0

Type

conf

DOI

10.1109/APS.2012.6348596

Filename

6348596