Title :
A low sidelobe sub-array of portable USATs
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
Design and experimental results of a low side-lobe sub-array composed of dual-aperture coupled rectangular microstrip patch antenna elements, suitable for portable ultra small aperture terminals (USATs), are presented The dual-band dual-polarised antenna element achieves 21% input impedance bandwidth at S- and C-bands. Design of a series-parallel feed network and integration with an 8/spl times/8-element 30 dB sidelobe arrays with such an antenna element are also presented.
Keywords :
antenna feeds; aperture antennas; microstrip antenna arrays; planar antenna arrays; satellite ground stations; C-band; S-band; VSAT terminal; dual-aperture coupled rectangular antenna elements; dual-polarised antenna; impedance bandwidth; low sidelobe subarray; microstrip patch antenna elements; planar antenna array; portable ultrasmall aperture terminals; series-parallel feed network; Antenna arrays; Aperture antennas; Aperture coupled antennas; Bandwidth; Dual band; Feeds; Impedance; Microstrip antenna arrays; Microstrip antennas; Patch antennas;
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.2003.1220333
