A filter design method of direct rf undersampling on-board receiver for ka-band HTS

Tomoyuki Furuichi, Yang Gui, Mizuki Motoyoshi, Suguru Kameda, Takashi Shiba, Noriharu Suematsu

研究成果: Article査読

抄録

In this paper, we propose a radio frequency (RF) anti-aliasing filter design method considering the effect of a roll-off characteristic on a noise figure (NF) in the direct RF undersampling receiver. The proposed method is useful for broadband reception that a system bandwidth (BW) has nearly half of the sampling frequency (1/2 fs). When the system BW is extended nearly 1/2 fs, the roll-off band is out of the desired Nyquist zone and it affects NF additionally. The proposed method offers a design target regarding the roll-off characteristic not only the rejection ratio. The target is helpful as a design guide to meet the allowed NF. We design the filter based on the proposed method and it is applied to the direct RF undersampling on-board receiver for Ka-band high throughput satellite (HTS). The measured NF value of the implemented receiver almost matched the designed value. Moreover, the receiver achieved the reception bandwidth which is 90% of 1/2 fs.

本文言語English
ページ(範囲)1078-1085
ページ数8
ジャーナルIEICE Transactions on Communications
E103B
10
DOI
出版ステータスPublished - 2020 10月 1

ASJC Scopus subject areas

  • ソフトウェア
  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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