TY - JOUR AU - AB - Universal Journal of Electrical and Electronic Engineering 2(7): 278-285, 2014 http://www.hrpub.org DOI: 10.13189/ujeee.2014.020703 Tunable Diplexer for Cognitive Radio RF Front-end Modules 1,* 2 Erick Emmanuel Djoumessi , Ke Wu Intel Corporation, Libertyville, 60048, Illinois, United States Poly-Grames Research Center, Ecole Polytechnique de Montreal, Montreal, H3T1J4, Quebec, Canada *Corresponding Author: erickemmanuel.djoumessi@polymtl.ca Copyright © 2014 Horizon Research Publishing. All rights reserved. Abstract This paper describes the design and discriminator–locked tunable oscillator. Moreover, tunable measurement of a varactor-tuned planar diplexer for RF front-end components that have largely been studied and reconfigurable multi-mode/multi-standard transceiver implemented for the future software defined cognitive radio front-end modules. The proposed diplexer of 3 cm × 1.8 cm systems (SDCR) are RF filters [2], [3], couplers [4], [5] ], is composed of two tunable dual-mode bandpass filters with and demodulators [6]. In this letter, a varactor-tuned planar two varactor diodes. The diplexer channels are 8.8% dual-mode bandpass filter is used to design a tunable relative bandwidth at 2.48 and 3.2 GHz for 25 V biased diplexer. Simulations and measurements results of voltage, while 7.5% and 4.1% are obtained at 2.075 and S-parameters and 1-dB compression point for different 2.606 GHz for 5 V, respectively. The center-frequency biased voltage TI - Tunable Diplexer for Cognitive Radio RF Front-end Modules JF - Universal Journal of Electrical and Electronic Engineering DO - 10.13189/ujeee.2014.020703 DA - 2014-09-01 UR - https://www.deepdyve.com/lp/unpaywall/tunable-diplexer-for-cognitive-radio-rf-front-end-modules-Ev9yGphk3h DP - DeepDyve ER -