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Passive Radar Antenna Array Design and Assembly

Barr, Matthew N
http://rave.ohiolink.edu/etdc/view?acc_num=osu1501503462048901

Abstract Details

2017, Master of Science, Ohio State University, Electrical and Computer Engineering.
Digitally scanned arrays are highly beneficial for use in passive radar systems due to their adaptive beam- and null-steering capabilities, critical for reliable wide area surveillance as well as multi-target tracking. Furthermore, the lack of moving components needed to perform scanning operations reduces long term maintenance costs. A large, low-cost overlapped subarray architecture was designed, assembled, and characterized using commercial off the shelf antennas. The subarray architecture reduces the number of ADCs required without compromising gain or beamwidth, but limits the maximum achievable scan angle due to grating lobes. To combat this the subarrays are overlapped, thus suppressing grating lobes and sidelobe levels; the increased system scan angle results in wider area surveillance and tracking but also increases resilience to direct signal interference, generally the limiting factor for passive radar performance. Furthermore, the two-dimensional array enables three-dimensional target localization with azimuth and elevation steering. The final design and mutual coupling analysis is shown here, both which include FEKO® simulations and compact range measurements made at the ElectroScience Laboratory. The final array design exhibits 20.5-22.2 dBi of gain at boresight, a HPBW of 5.5-6.9°, and a maximum scan angle of ± 15-17° in azimuth across its 150 MHz bandwidth.
Graeme Smith, Dr. (Advisor)
Kubilay Sertel, Dr. (Committee Member)
106 p.
Electrical Engineering

Recommended Citations

Citations

  • Barr, M. N. (2017). Passive Radar Antenna Array Design and Assembly [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1501503462048901

    APA Style (7th edition)

  • Barr, Matthew. Passive Radar Antenna Array Design and Assembly. 2017. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1501503462048901.

    MLA Style (8th edition)

  • Barr, Matthew. "Passive Radar Antenna Array Design and Assembly." Master's thesis, Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1501503462048901

    Chicago Manual of Style (17th edition)

osu1501503462048901
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© 2017, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.