A Scalable Circularly-Polarized 256-Element Ka-Band Phased-Array SATCOM Transmitter with ±60° Beam Scanning and 34.5 dBW EIRP
In: 2019 IEEE MTT-S International Microwave Symposium (IMS), 2019-06-01
Online
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Zugriff:
This paper presents a scalable 256-element Ka-band switchable dual-polarizrd phased-array SATCOM transmitter (TX). The phased-array can generate linear, rotated linear, clockwise and counter-clockwise polarization which can be selected by setting the phased shifters in the beamformer chips. The low-cost design uses FR-4 based printed circuit board (PCB), surface mount technology (SMT) and silicon beamformer chips. The phased-array can scan to ± 60° in the elevation plane with a 3-dB beamwidth of 7° and 34.5 dBW EIRP at broadside. It has a measured 3-dB instantaneous axial-ratio bandwidth of 2 GHz and is scalable without grating lobes to allow economical construction of larger phased-arrays. The compact size of (14 x 11.5 cm) makes it suitable for a low-cost Ka-band SATCOM terminal.
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A Scalable Circularly-Polarized 256-Element Ka-Band Phased-Array SATCOM Transmitter with ±60° Beam Scanning and 34.5 dBW EIRP
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Autor/in / Beteiligte Person: | Zihir, Samet ; Kevin Kai Wei Low ; Kanar, Tumay ; Rebeiz, Gabriel M. ; Nafe, Ahmed |
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Zeitschrift: | 2019 IEEE MTT-S International Microwave Symposium (IMS), 2019-06-01 |
Veröffentlichung: | IEEE, 2019 |
Medientyp: | unknown |
DOI: | 10.1109/mwsym.2019.8701112 |
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