Design and modeling of finite and low-profile, ultra-wideband phased-array antennas

Norma Riley, Douglas Riley, Jian Ming Jin

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

Abstract

The physical phenomena that determine the bandwidth of wideband connected phased arrays are identified by examining time domain responses of the total voltage or current at the input terminals of a radiator in the array. The paper demonstrates that achieving the widest possible bandwidth from a phased array requires minimization or cancellation of the following: (1) signals traveling into the observation port from neighboring elements, (2) reflections from discontinuities in the geometry of the radiating element, (3) reflections from the edge of a finite connected array, and (4) reflections from the ground plane. An investigation of currents on various connected arrays demonstrates that shaping the radiating element to minimize reflections from the end of the array and interactions with neighboring sources is an important first step toward wideband phased array designs. Of particular interest are self-complementary radiators. The use of high impedance substrates is further demonstrated as a means to obtain ultra widebandwidth when self-complementary radiators are placed above a conducting ground plane. Finally, advanced finite element methods are briefly described for the efficient and accurate analysis of both infinite and finite ultra wideband arrays.

Original languageEnglish (US)
Title of host publication2010 IEEE International Symposium on Phased Array Systems and Technology, Array 2010
Pages484-491
Number of pages8
DOIs
StatePublished - Nov 29 2010
Event4th IEEE International Symposium on Phased Array Systems and Technology, Array 2010 - Boston, MA, United States
Duration: Oct 12 2010Oct 15 2010

Publication series

NameIEEE International Symposium on Phased Array Systems and Technology

Other

Other4th IEEE International Symposium on Phased Array Systems and Technology, Array 2010
CountryUnited States
CityBoston, MA
Period10/12/1010/15/10

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Riley, N., Riley, D., & Jin, J. M. (2010). Design and modeling of finite and low-profile, ultra-wideband phased-array antennas. In 2010 IEEE International Symposium on Phased Array Systems and Technology, Array 2010 (pp. 484-491). [5613324] (IEEE International Symposium on Phased Array Systems and Technology). https://doi.org/10.1109/ARRAY.2010.5613324