Title

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

Keywords

Bandpass filter; cavity resonator; packaging; slot antenna; time-domain analysis; vertical integration

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 X 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. © 2011 IEEE.

Publication Date

11-1-2011

Publication Title

IEEE Transactions on Antennas and Propagation

Volume

59

Issue

11

Number of Pages

4016-4022

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/TAP.2011.2164186

Socpus ID

80455130909 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/80455130909

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