Frequency switchable quasi-Yagi dipole array for base station antennas

Yong Cai*, Y. Jay Guo, Peiyuan Qin

*Corresponding author for this work

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

    2 Citations (Scopus)

    Abstract

    A frequency agile quasi-Yagi dipole sub-array is proposed as an array element for base station antennas. The sub-array consists of four printed Yagi dipole antennas loaded with PIN diodes. The lengths of the director and driven dipole elements can be changed by controlling the PIN diodes states so that the sub-array can operate in either 2.5 or 3.5GHz band. Simulation results show that by using a broadband microstrip-to-coplanar stripline (CPS) feeding structure, the sub-array is well matched with impedance bandwidth (|S11| ≤ 10dB) of 6.5% and 10.5% in the lower and higher bands, respectively. The end-fire fan-beam pattern is obtained across the dual bands, which makes the antenna element suitable for base station applications that require frequency reconfigurability. Predicted gains are 9.4 and 12dBi at 2.5 and 3.5GHz, respectively.

    Original languageEnglish
    Title of host publication2011 IEEE International Symposium on Antennas and Propagation (APSURSI 2011)
    Place of PublicationPiscataway, NJ
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages738-741
    Number of pages4
    ISBN (Electronic)9781424495634, 9781424495610
    ISBN (Print)9781424495627
    DOIs
    Publication statusPublished - 2011
    Event2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011 - Spokane, WA, United States
    Duration: 3 Jul 20118 Jul 2011

    Publication series

    NameDigest : Digest - IEEE Antennas and Propagation Society. International Symposium
    PublisherIEEE Service Center
    ISSN (Print)1522-3965
    ISSN (Electronic)1947-1491

    Other

    Other2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011
    CountryUnited States
    CitySpokane, WA
    Period3/07/118/07/11

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