Design of a Dual-Polarization Single-Ridged Waveguide Slot Array With Enhanced Bandwidth

Design of a Dual-Polarization Single-Ridged Waveguide Slot Array With Enhanced Bandwidth

A dual-polarization slotted waveguide array based on a single-ridged waveguide (SRWG) with enhanced working bandwidth and low cross-polarization is designed and fabricated. A longitudinal slot etched on the broad sidewall of the SRWG is employed for the vertical polarization (VP) radiating element,...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2019-01, Vol.18 (1), p.138-142
Hauptverfasser: Luo, Hao, Xiao, Yu, Lu, Xiangcheng, Sun, Houjun
Format: Artikel
Sprache:eng
Schlagworte:
Antenna arrays
Arrays
Bandwidth
Dual polarization (waves)
Dual-polarization antenna
Feeds
Gain
Horizontal polarization
Radar antennas
Resonant frequency
Slot antennas
Vacuum brazing
Vertical polarization
waveguide slot
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Zusammenfassung:A dual-polarization slotted waveguide array based on a single-ridged waveguide (SRWG) with enhanced working bandwidth and low cross-polarization is designed and fabricated. A longitudinal slot etched on the broad sidewall of the SRWG is employed for the vertical polarization (VP) radiating element, and a V-shaped slot cut on the ridged sidewall of the SRWG is used as a horizontal polarization (HP) radiating element. The width of the radiating slots is weighted to broaden the bandwidth of the radiating parts. A corporate feed network is employed as the feed network instead of a conventional series feed network. An 8 × 8 array is fabricated by milling and vacuum brazing. The measured VSWR 
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2018.2882894