ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
26.63
Session ID : IPU200276
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2-GHz-Band Highly Accurate On-chip Polyphase filters
Kenji SUZUKIMamoru UGAJINJunichi KODATETsuneo TSUKAHARA
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

2-GHz-Band Highly Accurate On-chip Polyphase filters is presented. A rotational asymmetric configuration is adopted to improve the gain mismatches and phase errors of quadrature signals. Shielded metal layer, which is between polyphase filters and substrate of wafers, could reduce the substrate crosstalk, which causes the gain mismatches of quadrature signals. The measured amplitude mismatches and phase errors of the polyphase filters are 0.05 dB and 1 degree, respectively. An image rejection mixer, which composed of a quadrature mixer and the polyphase filters, achieves 40dB image rejection.

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© 2002 The Institute of Image Information and Television Engineers
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