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An Analytical Model of Conversion Gain for Submicron Active Mixers with LO Offsets
-
Benqing Guo
and
Shiquan An
Published/Copyright:
March 15, 2013
Abstract
The conversion gain of CMOS active mixers is investigated in terms of several kinds of LO offsets. With the effect of output resistance characterized in submicron process, the effective transconductance of driving stage is rigorously derived based on small-signal cascode equivalence. An analytical conversion gain model for the mixer with several kinds of LO offsets is thus presented. Based on Chartered 0.35 µm CMOS technologies, the Spectre-RF simulations agree with the predictions from the proposed model well, where the maximal error is less than 0.28 dB.
Keywords: CMOS mixers; conversion gain; LO offsets; amplitude imbalance; phase imbalance; Gilbert mixers
Received: 2012-07-24
Published Online: 2013-03-15
Published in Print: 2013-03-01
©[2013] by Walter de Gruyter Berlin Boston
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Keywords for this article
CMOS mixers;
conversion gain;
LO offsets;
amplitude imbalance;
phase imbalance;
Gilbert mixers
Articles in the same Issue
- Masthead
- A Novel 3-dB Trans-directional Coupler with DGS and Conductor-backed Asymmetric Coplanar Waveguides
- Improvement in Roll off Factor of Low Pass Filter Placed on an EBG Substrate
- Microwave Generation Based on Polarization Modulator and Brillouin-assisted Sideband-Filtering
- An Analytical Model of Conversion Gain for Submicron Active Mixers with LO Offsets
- Optimal Consensus Based Decentralized Cooperative Spectrum Sensing in Cognitive Radio Networks
- Double Threshold Energy Detection Based Cooperative Spectrum Sensing for Cognitive Radio Networks with QoS Guarantee
- Time-Varying Channel Estimation Using Superimposed Training Based on Self-Interference Suppression
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- Closed-form Capacity Expressions for the α-μ Fading Channel with SC Diversity under Different Adaptive Transmission Strategies
