Compact frequency tunable filtenna with wide continuous tuning range using capacitively loaded folded arms open loop resonator for interweave cognitive radio applications

Hany A. Atallah, Adel B. Abdel-Rahman, Kuniaki Yoshitomi, Ramesh Pokharel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In this paper, a compact microstrip planar monopole antenna with a wide tunable frequency band is proposed and developed for interweave cognitive radio (CR) communication applications. Tunability is achieved by integrating a tunable folded arms open loop resonator bandpass filter with an ultra-widband (UWB) microstrip monopole antenna. The technique depends on centrally loading the folded arms open loop resonator with a single lumped varactor diode, decreasing the varactor capacitance results in increasing the miniaturized even resonant mode of the folded arms open loop resonator while keeping the odd-mode fixed. The filter-antenna is adaptable and compact in terms of the availability of several tunable bands. Moreover, the simple biasing of the varactor diode does not have a significant effect on the filtenna performance. Simulation results show that the proposed design is capable of tuning over a continuous wide operating band of 3.18 GHz covering a large band for interweave CR communication with a 52 % frequency tuning range from 4.6 to 7.8 GHz. Furthermore, the normalized radiation patterns are steady over the operating frequency bands. The frequency parameters and radiation patterns of the proposed filter-antenna are successfully optimized with numerical experimentation approaches using 3D full-wave electromagnetic simulator.

Original languageEnglish
Title of host publicationProceedings - 2016 33rd National Radio Science Conference, NRSC 2016
EditorsSaid E. El-Khamy, Hesham El-Badawy, Sherif El-Diasty
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages87-93
Number of pages7
ISBN (Electronic)9781467396509
DOIs
Publication statusPublished - Apr 11 2016
Event33rd National Radio Science Conference, NRSC 2016 - Aswan, Egypt
Duration: Feb 22 2016Feb 25 2016

Publication series

NameNational Radio Science Conference, NRSC, Proceedings
Volume2016-April

Other

Other33rd National Radio Science Conference, NRSC 2016
CountryEgypt
CityAswan
Period2/22/162/25/16

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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