A high‐performance 94 GHz planar Quasi‐Yagi antenna on GaAs substrate

Abstract

Abstract A high‐performance 94 GHz planar Quasi‐Yagi antenna on a GaAs substrate is presented. The antenna is fabricated on a 100 μm GaAs wafer and has dimension of 1.6 × 2.6 mm 2 . Experimental results show that this antenna covers a wide bandwidth from 91 GHz to 106 GHz, with the return loss of better than −10 dB. An end‐fire radiation pattern is formed, a peak gain of 7.1 dBi, and front‐to‐back ratio of 15 dB at 94 GHz are also achieved. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2396–2400, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24628