期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 68, 期 7, 页码 5730-5735出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2020.2963949
关键词
Couplings; Electronic countermeasures; Integrated circuit modeling; Dual band; Resonant frequency; Magnetic flux; Antennas; Circular polarization; dual-band; equivalent circuits; frequency selective surfaces; polarizers
资金
- MacDonald, Dettwiler and Associates, Ltd. (MDA)
- Natural Sciences and Engineering Research Council of Canada (NSERC) Strategic Partnerships Program
- Fundacao para a Ciencia e Tecnologia (FCT) [PTDC/EEI-TEL/30323/2017, UIDB/EEA/50008/2020]
- Fundação para a Ciência e a Tecnologia [PTDC/EEI-TEL/30323/2017] Funding Source: FCT
The working principle of a thin dual-band dual-linear to circular polarizer is presented here. This polarizer not only converts incident linearly polarized (LP) waves to circularly polarized (CP) waves in two frequency bands, but it also reverses the handedness of each signal. The electromagnetic behavior of the cell is carefully analyzed and two equivalent circuit models (ECMs) are presented to model the responses of the cell to linearly polarized waves at normal incidence. The ECMs show how utilizing interlayer coupling can be leveraged to achieve reversed CP senses in two bands using a compact design. Analytical formulas are presented to provide initial values of the ECM components including the mutual coupling inductances. We present measurement results that agree well with the full-wave simulation and the ECM results, thus validating the proposed ECM model.
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