A multi-eared antenna with frequency and polarization reconfigurability

Keng Hsien Chen*, Jhao Ru Chen, Sung Jung Wu, Jenn-Hawn Tarng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations


With the rapid development of cognitive radio technology, reconfigurable antennas are getting more and more attention. In general, the design of reconfigurabilities and impedance matching of reconfigurable antennas is individually achieved by different parts of antenna structure. However, designs of this kind increases switching mechanism complexity and the cost of antennas. This paper presents an innovative multi-eared antenna with frequency and polarization reconfigurability. The proposed ear-like structures can concurrently control and influence the resonant frequency, phase, and antenna impedance to simultaneously achieve the design of frequency reconfigurability, polarization reconfigurability, and impedance matching. The proposed antenna demonstrates that it can switch its frequency to 3.2 GHz, 3.35 GHz, or 3.5 GHz with linear polarization (LP); or it can switch its polarization to linear, left hand, or right hand circular polarization (LHCP/ RHCP) at 3.35 GHz. The simulated and measured results of the proposed antenna indicate that it possesses good impedance bandwidth and axial ratio (AR). Hence, the proposed reconfigurable antenna is well suited to wireless communication applications.

Original languageEnglish
Title of host publicationAsia-Pacific Microwave Conference Proceedings, APMC 2011
Number of pages4
StatePublished - 1 Dec 2011
EventAsia-Pacific Microwave Conference, APMC 2011 - Melbourne, VIC, Australia
Duration: 5 Dec 20118 Dec 2011

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC


ConferenceAsia-Pacific Microwave Conference, APMC 2011
CityMelbourne, VIC


  • antenna diversity
  • circular polarization
  • linear polarization
  • PIN diode
  • Reconfigurable antennas


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