A Seamless Integration of 3-D Vertical Filters With Highly Efficient Slot Antennas

    Authors

    Y. Yusuf; H. T. Cheng;X. Gong

    Comments

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    Abbreviated Journal Title

    IEEE Trans. Antennas Propag.

    Keywords

    Bandpass filter; cavity resonator; packaging; slot antenna; time-domain; analysis; vertical integration; WAVE-GUIDE FILTERS; CAVITY; TECHNOLOGY; DESIGN; LTCC; Engineering, Electrical & Electronic; Telecommunications

    Abstract

    A seamless integration of 3-D vertical cavity filters with highly efficient slot antennas is presented herein. This integration technique enables low-loss filtering and reduces co-site interference within phased arrays. A vertical two-pole cavity filter integrated with a slot antenna is demonstrated at band. The center frequency and fractional bandwidth of the filter/antenna system are 10.16 GHz and 3.0%, respectively. Due to the near-zero transition loss achieved by this seamless integration, the efficiency of the integrated slot antenna is shown to be as high as 97%. Equivalent circuit models are developed to identify the losses in the filter/antenna, which are verified by full-wave simulations. The measured impedance matching and radiation patterns closely agree with simulation results. This technique can be extended for higher-order filters seamlessly integrated with slot antennas. In addition, this technique can be applied in all microwave, millimeter-wave, and submillimeter-wave frequency regions.

    Journal Title

    Ieee Transactions on Antennas and Propagation

    Volume

    59

    Issue/Number

    11

    Publication Date

    1-1-2011

    Document Type

    Article

    Language

    English

    First Page

    4016

    Last Page

    4022

    WOS Identifier

    WOS:000296474200008

    ISSN

    0018-926X

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