Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 21, Issue 8, Pages 1683-1687Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2022.3177557
Keywords
Dipole antennas; Liquids; Magnetoelectric effects; Magnetic liquids; Antenna radiation patterns; Copper; Reflector antennas; Liquid metal; magneto-electric dipole; parasitic unit; pattern-reconfigurable
Funding
- National Natural Science Foundation of China [62031006]
- China Mobile Research Institute -Beijing University of Post and Telecommunications Joint Innovation Center [R207010101125D9]
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We propose a pattern-reconfigurable liquid metal magneto-electric dipole antenna, which can achieve 15 different pattern reconstructions by using liquid metal to create parasitic units around the antenna. This antenna has high gain and efficiency, and can cover a portion of the communication frequency band, making it suitable for future communication.
We propose a pattern-reconfigurable liquid metal magneto-electric dipole antenna. The antenna is composed of a magneto-electric dipole made of copper and a liquid metal channel structure made of Polycarbonate (PC), one CYRILLIC CAPITAL LETTER GHE-Type feeding strip is placed in the middle of magneto-electric dipole for coupling feeding. The proposed pattern-reconfigurable antenna mainly uses liquid metal to make parasitic units around the antenna. Each liquid metal parasitic unit is controlled separately and connected with the liquid storage tank at the bottom through a plastic tube, by changing the arrangement of parasitic units, the pattern reconfiguration of 15 states can be realized corresponding to (theta, phi) max = (0 degrees, 0 degrees), (+/- 32 degrees, 0 degrees), (+/- 30 degrees, +/- 30 degrees), (+/- 32 degrees, +/- 58 degrees), (+/- 28 degrees, +/- 86 degrees). The main working frequency band of the antenna is 2-2.5 GHz. When the working state of the antenna changes, the gain is always higher than 6 dB and the efficiency is greater than 70%. The proposed antenna can cover part of the communication frequency band and can be used for future communication.
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