X-band surveillance radar antenna with integrated IFF antenna

Pedersen, Morten O.; Hansen, Kim Vang; Thomsen, A. K.; Lokke, M.

doi:10.1109/radar.2011.5960522

Cited by 1 publication

(3 citation statements)

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“…For the microstrip power dividers, the well-known, simple, and efficient method of arbitrary power division ratio is used based on the difference between the widths of output microstrip ports and therefore their characteristic impedance [19], [22]. These characteristic impedances for an N-way power divider (Z i ) are given by simultaneous solution of N equations, namely (4) and (N -1) equations (5) 1 0…”

Section: Component Designmentioning

confidence: 99%

“…For the hybrid couplers, a conventional rat-race configuration [19], [22] shown in Fig. 10 satisfies the requirements.…”

Section: Component Designmentioning

confidence: 99%

“…In order to generate SUM and DIFF patterns only, custom designed power splitter/combiner, and 180-degree hybrids are needed. A suitable feed network is proposed in [19] for SUM and DIFF pattern, but it is not able to generate CTRL pattern. Moreover, it is not optimized choice for DIFF pattern.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Efficient Multi-Beam Array Architecture for L-Band Secondary Surveillance Radars

Aliakbarian¹,

Khak²,

Shahpari³

et al. 2019

RADIOENGINEERING

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In this paper, the design and fabrication of a large array antenna with three required, Sum, Difference and Control beams for a monopulse Secondary Surveillance Radar (SSR) is presented. A special array element, which is a high gain dual dipole structure, is designed and tested. This element has 9.6 dB gain in 1060 MHz and does not need any balun. The main challenge of extracting three beams out of one beam feeding networks (BFN) has been resolved efficiently by maximum integration of all three in one network, reducing the number of required modules to one half. The complete 33-element array, working in 1030 MHz and 1090 MHz is designed based on the Taylor array factor. The complex feed network of this 6-meter long array has successfully been synthesized as modular as possible. Sum pattern was designed for 2.7 o azimuth beam width and -20 dB side lobe level and Diff pattern with a deep null in the boresight of the Sum pattern. The Ctrl beam was also designed in order to cover the Sum beam except in the direction of the main lobe.

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Section: Component Designmentioning

confidence: 99%

“…For the hybrid couplers, a conventional rat-race configuration [19], [22] shown in Fig. 10 satisfies the requirements.…”

Section: Component Designmentioning

confidence: 99%