2020年10月1日
A filter design method of direct rf undersampling on-board receiver for ka-band HTS
IEICE Transactions on Communications
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- 巻
- E103B
- 号
- 10
- 開始ページ
- 1078
- 終了ページ
- 1085
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1587/transcom.2019CBP0008
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 f ). When the system BW is extended nearly 1/2 f , 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 f . s s s
- リンク情報
- ID情報
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- DOI : 10.1587/transcom.2019CBP0008
- ISSN : 0916-8516
- eISSN : 1745-1345
- SCOPUS ID : 85094172465