Circularly polarized conical-beam patch antenna with frequency agility

Jhe Sheng Yang, Jeen Sheen Row

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

Abstract

A frequency reconfigurable design for circularly polarized antennas with conical radiation patterns is described. The design is based on a circular microstrip antenna that is operated at TM21 mode and excited by dual orthogonal feeds with a phase difference of 90°. To vary the resonant frequency of the antenna, several varactors are placed along the circumference of the circular radiating patch. According to the simulated results, it is found that the resonant frequency can be tuned from 1.55 to 2.9 GHz when the capacitance value of the varactors is decreased from 2 to 0 pF. Moreover, the antenna at each resonant frequency can provide an omnidirectional radiation pattern with good circular polarization performance and a return loss of less than 10 dB.

Original languageEnglish
Title of host publicationAPCAP 2016 - 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages61-62
Number of pages2
ISBN (Electronic)9781467372374
DOIs
Publication statusPublished - 2017 Feb 3
Event5th IEEE Asia-Pacific Conference on Antennas and Propagation, APCAP 2016 - Kaohsiung, Taiwan
Duration: 2016 Jul 262016 Jul 29

Publication series

NameAPCAP 2016 - 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, Conference Proceedings

Other

Other5th IEEE Asia-Pacific Conference on Antennas and Propagation, APCAP 2016
CountryTaiwan
CityKaohsiung
Period16-07-2616-07-29

Fingerprint

Frequency agility
patch antennas
Microstrip antennas
resonant frequencies
Natural frequencies
varactor diodes
Varactors
antennas
Antennas
Circular polarization
microstrip antennas
circumferences
Directional patterns (antenna)
radiation
circular polarization
Capacitance
capacitance

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Instrumentation
  • Radiation

Cite this

Yang, J. S., & Row, J. S. (2017). Circularly polarized conical-beam patch antenna with frequency agility. In APCAP 2016 - 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, Conference Proceedings (pp. 61-62). [7843099] (APCAP 2016 - 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, Conference Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APCAP.2016.7843099
Yang, Jhe Sheng ; Row, Jeen Sheen. / Circularly polarized conical-beam patch antenna with frequency agility. APCAP 2016 - 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, Conference Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 61-62 (APCAP 2016 - 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, Conference Proceedings).
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abstract = "A frequency reconfigurable design for circularly polarized antennas with conical radiation patterns is described. The design is based on a circular microstrip antenna that is operated at TM21 mode and excited by dual orthogonal feeds with a phase difference of 90°. To vary the resonant frequency of the antenna, several varactors are placed along the circumference of the circular radiating patch. According to the simulated results, it is found that the resonant frequency can be tuned from 1.55 to 2.9 GHz when the capacitance value of the varactors is decreased from 2 to 0 pF. Moreover, the antenna at each resonant frequency can provide an omnidirectional radiation pattern with good circular polarization performance and a return loss of less than 10 dB.",
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Yang, JS & Row, JS 2017, Circularly polarized conical-beam patch antenna with frequency agility. in APCAP 2016 - 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, Conference Proceedings., 7843099, APCAP 2016 - 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, Conference Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 61-62, 5th IEEE Asia-Pacific Conference on Antennas and Propagation, APCAP 2016, Kaohsiung, Taiwan, 16-07-26. https://doi.org/10.1109/APCAP.2016.7843099

Circularly polarized conical-beam patch antenna with frequency agility. / Yang, Jhe Sheng; Row, Jeen Sheen.

APCAP 2016 - 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, Conference Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017. p. 61-62 7843099 (APCAP 2016 - 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, Conference Proceedings).

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

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N2 - A frequency reconfigurable design for circularly polarized antennas with conical radiation patterns is described. The design is based on a circular microstrip antenna that is operated at TM21 mode and excited by dual orthogonal feeds with a phase difference of 90°. To vary the resonant frequency of the antenna, several varactors are placed along the circumference of the circular radiating patch. According to the simulated results, it is found that the resonant frequency can be tuned from 1.55 to 2.9 GHz when the capacitance value of the varactors is decreased from 2 to 0 pF. Moreover, the antenna at each resonant frequency can provide an omnidirectional radiation pattern with good circular polarization performance and a return loss of less than 10 dB.

AB - A frequency reconfigurable design for circularly polarized antennas with conical radiation patterns is described. The design is based on a circular microstrip antenna that is operated at TM21 mode and excited by dual orthogonal feeds with a phase difference of 90°. To vary the resonant frequency of the antenna, several varactors are placed along the circumference of the circular radiating patch. According to the simulated results, it is found that the resonant frequency can be tuned from 1.55 to 2.9 GHz when the capacitance value of the varactors is decreased from 2 to 0 pF. Moreover, the antenna at each resonant frequency can provide an omnidirectional radiation pattern with good circular polarization performance and a return loss of less than 10 dB.

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Yang JS, Row JS. Circularly polarized conical-beam patch antenna with frequency agility. In APCAP 2016 - 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, Conference Proceedings. Institute of Electrical and Electronics Engineers Inc. 2017. p. 61-62. 7843099. (APCAP 2016 - 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, Conference Proceedings). https://doi.org/10.1109/APCAP.2016.7843099