WIDEBAND MUSHROOM COMPOSITE RIGHT/LEFT HANDED TRANSMISSION LINE ANTENNA WITH CAVITY-BACKED SUBSTRATE INTEGRATED WAVEGUIDE

Hui-Fen Huang, Sun Shuai
2018 Progress In Electromagnetics Research Letters  
A wideband composite right/left handed transmission line (CRLH-TL) antenna with cavitybacked substrate integrated waveguide (SIW) is proposed in this letter. This proposed antenna consists of a 2 × 2 array of mushroom unit cells, feeding line and cavity-backed SIW. By introducing SIW structure both impedance and gain of the antenna are improved. The proposed antenna has average measured gain of 7 dBi (peak measured gain of 9.5 dBi), wide −10 dB impedance matching bandwidth of 55% from 5.4 GHz
more » ... 55% from 5.4 GHz to 8.4 GHz, small size of 40 mm × 50 × 4 mm, high integration ability, and reduced back radiation.
doi:10.2528/pierl18090505 fatcat:ze5u2m5eyja6vm4qjbo6s2ks24