首页|An Open-Ended Waveguide-Based W-Band Active Electrical Scanning Phased Array Antenna With High Radiation Efficiency
An Open-Ended Waveguide-Based W-Band Active Electrical Scanning Phased Array Antenna With High Radiation Efficiency
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NETL
NSTL
IEEE
A W-band active electrical scanning phased array antenna is proposed by employing a metallic open-ended waveguide as a radiation element with integrated fan-out work for high radiation efficiency in this letter. By mounting four metallic walls on the aperture of the open-ended waveguide, the scanning active voltage standing-wave ratio (VSWR) can be improved. Additionally, a waveguide-based fan-out network is designed to enlarge the spacing between the open-ended waveguide antenna elements and integrate the T/R module into the waveguide array. The simulated results demonstrate that the proposed array achieves VSWR<2 from 86.4 GHz to 110 GHz with an impedance bandwidth of 23.6% within ±30° scanning in the E-plane and H-plane. A high radiation efficiency of above 87% is obtained at the W band. An 8 × 8 prototype is fabricated and measured. Good agreement is achieved between the simulated and measured results.
NETL
NSTL
IEEE
