期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 19, 期 12, 页码 2339-2343出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2020.3032739
关键词
Dipole antennas; Antenna measurements; Antenna radiation patterns; Slot antennas; Metals; Surface impedance; Microstrip antennas; Dipole; dual band; high-pass filter; large frequency ratio; structure-shared; substrate integrated waveguide slot antenna (SIWA)
资金
- National Natural Science Foundation of China (NSFC) [U1966201]
- Fundamental Research Funds for the Central Universities (FRFCU) [ZYGX2019Z022, XGBDFZ03]
A dual-band structure-shared antenna with large frequency ratio is proposed in this letter by integrating two substrate integrated waveguide slot antennas (SIWAs) on the branches of dipole. In the proposed structure, dipole is fed by coaxial connector while SIWAs are fed by two microstrip lines. To improve the stability of the dipole and the isolation among three antennas, microstrip high-pass filter is introduced. Measured results show that the proposed antenna works at 27.3-28.8 GHz with directional radiation pattern and 3.02-5.03 GHz with omnidirectional radiation pattern.
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