Published May 1, 2015
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22.8 GHz Substrate Integrated Waveguide Analog Frequency Divide-by-3 Circuit
- 1. Centre Tecnològic de Telecomunicacions de Catalunya
Description
A 22.8 GHz analog frequency divide-by-3 circuit is presented based on an injection locked oscillator. Substrate integrated waveguide (SIW) technology is used to implement the input and output sections of the frequency divider circuit. The input SIW section at the gate of the active device permits the introduction of the injection signal at the third harmonic frequency of the oscillator, while the output section is designed to maximize the DC-RF conversion efficiency of the oscillator circuit. A prototype is fabricated presenting a measured DC-RF efficiency of 38.5% at 7.603 GHz output frequency with 3.7 dBm output power. An injection locking bandwidth of 301.4 MHz was obtained for a 1.5 dBm input injection signal at 22.8 GHz.
Notes
© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Grant no: TEC2012-39143 (SOSRAD), 2014 SGR 1551 (Generalitat de Catalunya), COST Action IC1301 Wireless Power Transmission for Sustainable Electronics (WIPE).
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