Beam-Reconfigurable Antenna Based on Vector Modulator and Rotman Lens on LTCC
نویسندگان
چکیده
A beam-switching array is designed using a 4×6 Rotman lens as beam-forming network to switch the beam towards -30°, -10°, 10°, and 30°. Six substrate integrated waveguide fed 1×4 microstrip patch arrays are used radiating elements. The on LTCC operate at 71-76 GHz. In this work, feasibility of implementing with vector modulator (VM) circuit switching element studied for first time. measured radiation pattern VM in line simulated pattern. peak realized gain port 1, 2, 3, 4 3-dB backoff 17, 17.8, 16.9 dBi 75 GHz, respectively. addition, work demonstrates possibility beam-reconfigurability by simultaneous excitation ports optimum phase VM. adjacent two ports, 1-2, 2-3, 3-4, steer -19°, 0°, 19°, respectively, which improves cross-over level. With various combinations excitation, half power beam-width varied from 17.8° 75°.
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ژورنال
عنوان ژورنال: IEEE Access
سال: 2021
ISSN: ['2169-3536']
DOI: https://doi.org/10.1109/access.2021.3070037