Title :
Micromachined millimeter-wave Butler matrix with a patch antenna array
Author :
Murad, N.A. ; Lancaster, M.J. ; Wang, Yi ; Ke, M.L.
Author_Institution :
Dept. of Electron., Electr. & Comput. Eng., Univ. of Birmingham, Birmingham, UK
Abstract :
This paper presents a micromachined patch antenna array with an integrated 2×2 Butler matrix (BM) beamformer. It was designed at 63 GHz and simulated using CST Microwave Studio 3D simulator. The BM is made using a low loss air filled rectangular coaxial line. The structure is constructed by bonding five layers of gold coated photoresist SU-8, each 200 microns thick. The experimental result shows a good matching achieved with return loss of -13 dB and inter-port isolation of about -22 dB at 63 GHz.
Keywords :
coaxial cables; microstrip antenna arrays; millimetre wave antenna arrays; CST microwave studio 3D simulator; frequency 63 GHz; gold coated photoresist SU-8; low loss air filled rectangular coaxial line; micromachined millimeter-wave Butler matrix beamformer; patch antenna array; Antenna arrays; Bonding; Butler matrix; Coaxial components; Computational modeling; Dielectric substrates; Frequency; Millimeter wave communication; Patch antennas; Radar antennas; beamforming; branch line coupler; micromachined; millimeter wave; patch array antenna;
Conference_Titel :
Microwave Symposium (MMS), 2009 Mediterrannean
Conference_Location :
Tangiers
Print_ISBN :
978-1-4244-4664-3
Electronic_ISBN :
978-1-4244-4665-0
DOI :
10.1109/MMS.2009.5409809
