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IEEE Microwave and Guided Wave Letters
Volume 10 Number 11, November 2000

Table of Contents for this issue

Complete paper in PDF format

A Balanced Self-Oscillating Mixer

N. Bourhill, Student Member, IEEE S. Iezekiel, Senior Member, IEEE and D. P. Steenson Senior Member, IEEE

Page 481.

Abstract:

A balanced self-oscillating mixer is proposed. It consists of a pair of AlGaAs/GaAs 10× 45 µm pHEMT's,oscillating at 7.53 GHz and uses the extended resonance effect. The circuit exhibits a conversion gain of 3.6 dB and reduces the second-order intermodulation products by 18.3 dB. The balanced nature of the oscillators also provides good LO to RF isolation of 40.5 dB when used as a upconverter. This approach relaxes the filtering requirements for generating single-sideband AM.

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