2012年5月
Automatic IQ Imbalance Compensation Technique for Quadrature Modulator by Single-Tone Testing
IEICE TRANSACTIONS ON COMMUNICATIONS
- ,
- ,
- ,
- 巻
- E95B
- 号
- 5
- 開始ページ
- 1864
- 終了ページ
- 1868
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1587/transcom.E95.B.1864
- 出版者・発行元
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
This letter proposes an automatic IQ imbalance compensation technique for quadrature modulators by means of spectrum measurement of RF signal using a spectrum analyzer. The analyzer feeds back only magnitude information of the frequency spectrum of the signal. To realize IQ imbalance compensation, the conventional method of steepest descent is modified; the descent direction is empirically determined and a variable step-size is introduced for accelerating convergence. The experimental results for a four-channel transmitter operating at 11 GHz are presented for verification.
- リンク情報
- ID情報
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- DOI : 10.1587/transcom.E95.B.1864
- ISSN : 0916-8516
- eISSN : 1745-1345
- Web of Science ID : WOS:000304573000050