منابع مشابه
A CMOS Sub-harmonic Mixer for WCDMA
This report describes a sub-harmonic mixer for WCDMA applications. The circuit converts a 2 GHz RF signal directly to baseband using a 1 GHz LO frequency. The mixer uses common source MOSFETs with inductive degeneration to convert the input RF voltage to a current. This current is then steered using a switching network composed of triode-region MOSFETs that is driven with the LO and a 90 degree...
متن کاملA 2.4 GHz High Performance CMOS Sub-Harmonic Mixer
In this paper a low power CMOS sub-harmonic mixer based on the Gilbert cell for 2.4 GHz ISM band application is presented, in which the position of the switching and transconductance stages of mixer has been exchanged. A tuning out inductor has been used between the RF and LO switching stages to improve the linearity and noise figure, and also to enhance the conversion gain of the Mixer. The ut...
متن کاملA 60 GHz double balanced sub-harmonic mixer MMIC
We present the design and measured results for a 60 GHz double balanced sub-harmonic MMIC mixer fabricated using the TRW 0.15μm gate length GaAs pHEMT foundry process. The sub-harmonic mixer architecture eliminates the need for costly mm-wave sources that are usually required with conventional fundamental frequency mixers. The mixer has been integrated into a coaxial package and a measured conv...
متن کاملA-1.8V Operation Switchable Direct-Conversion Receiver with sub-harmonic mixer
This paper reports on a fully-integrated CMOS switchable directconversion receiver for 2GHz and 5GHz. Switchable low noise amplifier is proposed for suiting for multiband (2GHz, 5GHz). Sub-harmonic mixing is used for down-conversion to minimize the DC-offset due to LO-leakage. The residual DC-offset is cancelled by a digital-to-analog converter at the output of mixer. For quadrature down-conver...
متن کاملDevelopment of a 340-GHz Sub-Harmonic Image Rejection Mixer Using Planar Schottky Diodes
: We report on the design, fabrication and test of an integrated 320-360 GHz Sub-Harmonic Image Rejection Mixer (SHIRM) using planar Schottky diodes. The integrated circuit uses two separate anti-parallel pairs of diodes mounted onto a single quartz-based circuit. Measurement results give SSB receiver noise temperatures of 3300 K at 340 GHz, with an image rejection from 7.6 dB to 23 dB over the...
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ژورنال
عنوان ژورنال: JOURNAL OF INFRARED AND MILLIMETER WAVES
سال: 2012
ISSN: 1001-9014
DOI: 10.3724/sp.j.1010.2011.00343