Title :
Broadband millimeter-wave suspended microstrip antenna array
Author :
Lau, N.U. ; Sloan, R.
Author_Institution :
Dept. of Electr. Eng. & Electron., Univ. of Manchester Inst. of Sci. & Technol., UK
Abstract :
We present a 64-patch suspended microstrip antenna array operating at 38 GHz. It consists of a single-layer of suspended broadband antenna elements, a low-loss suspended microstrip corporate feed network and a ground-plane impedance transformer. The measured return loss is -36 dB at 38 GHz for a -10 dB bandwidth of 30%. The antenna gain was measured at 21 dB. The suspended microstrip antenna array has good radiation patterns. The structure chosen for these millimeter-wave arrays is compatible with micromachined antenna technology employed elsewhere. Chemical etching of the copper support fixture has proved to be an extremely efficient methodology.
Keywords :
antenna feeds; antenna radiation patterns; broadband antennas; electric impedance; micromachining; microstrip antenna arrays; millimetre wave antenna arrays; -36 dB; 21 dB; 38 GHz; broadband antenna array; chemical etching; ground-plane impedance transformer; low-loss feed network; micromachined antenna technology; millimeter-wave antenna array; radiation patterns; suspended microstrip antenna array; suspended microstrip corporate feed network; Antenna feeds; Antenna measurements; Bandwidth; Broadband antennas; Impedance; Loss measurement; Microstrip antenna arrays; Microstrip antennas; Millimeter wave measurements; Millimeter wave technology;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1217454
