UW researchers have developed an electronically-reconfigurable reflectarray antenna with 2-bit phase quantization. This design uses three single-pole-single-throw (SPST) switches in a simple configuration. The unit cell of the proposed reflectarray antenna is composed of two main structures: an antenna, and a reflecting phase-shifting circuitry with three SPST switches, separated by a ground plane in the middle. When the 2-bit unit cell is illuminated with an incident electromagnetic wave, the wave is entirely reflected with a phase shift that can be adjusted electronically (between 0°/90°/180°/270°) by controlling the states of the SPST switches (i.e., turning them on or off). The proposed reflectarray antenna can be designed to operate over bandwidths as high as 50%, which is significantly wider than the state-of-the-art competing technologies.
Information Technology
ELECTRONICALLY RECONFIGURABLE 2-BIT PHASE QUANTIZATION PHASED ARRAY ELEMENT
WARF: P220060US01
Inventors: Nader Behdad, Mohammad Mahdi Honari Kalateh, John Booske
The Invention
Additional Information
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