Efficient Synthesis of Angular Selective Surfaces Based on Accurate Equivalent Circuit Analysis
(2023) In IEEE Transactions on Microwave Theory and Techniques 71(6). p.2625-2638- Abstract
A new efficient synthesis method of angular selective surfaces (ASSs) based on the accurate equivalent circuit model is proposed. The angular dispersion of different components under oblique incidence is modeled by virtual lumped elements in the angular domain. The processes of obtaining the equivalent circuit for substrates, electrically small grids and patch arrays are presented in detail. The synthesized circuits are simple and accurate. Full-wave simulations are carried out to obtain the angular dispersion of different structures, and the calculated results are in good agreement with those of the equivalent circuit. A third-order ASS with bandpass response and a second-order ASS with a tunable bandwidth are given as design examples.... (More)
A new efficient synthesis method of angular selective surfaces (ASSs) based on the accurate equivalent circuit model is proposed. The angular dispersion of different components under oblique incidence is modeled by virtual lumped elements in the angular domain. The processes of obtaining the equivalent circuit for substrates, electrically small grids and patch arrays are presented in detail. The synthesized circuits are simple and accurate. Full-wave simulations are carried out to obtain the angular dispersion of different structures, and the calculated results are in good agreement with those of the equivalent circuit. A third-order ASS with bandpass response and a second-order ASS with a tunable bandwidth are given as design examples. The implemented second-order ASS shows the 0.33 to 0.52 tunable bandwidth in the angular domain. The transmission loss is better than 1.2 dB when the incidence angle is 65°-77°. The simulation results and calculated results are in good agreement with the measured results.
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- author
- Qin, Tao LU ; Lin, Xian Qi ; Yao, Yao ; Liu, Yong ; Liu, Hao ; Hao, Peng and Mei, Peng
- organization
- publishing date
- 2023-06-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Angular selective surface (ASS), equivalent circuit, frequency selective surface, meta-surface, spatial angular filter
- in
- IEEE Transactions on Microwave Theory and Techniques
- volume
- 71
- issue
- 6
- pages
- 14 pages
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:85147225262
- ISSN
- 0018-9480
- DOI
- 10.1109/TMTT.2022.3232109
- language
- English
- LU publication?
- yes
- id
- 3c746543-dd25-4974-9602-9a6b68911b5f
- date added to LUP
- 2024-01-12 12:47:57
- date last changed
- 2024-01-12 12:49:48
@article{3c746543-dd25-4974-9602-9a6b68911b5f, abstract = {{<p>A new efficient synthesis method of angular selective surfaces (ASSs) based on the accurate equivalent circuit model is proposed. The angular dispersion of different components under oblique incidence is modeled by virtual lumped elements in the angular domain. The processes of obtaining the equivalent circuit for substrates, electrically small grids and patch arrays are presented in detail. The synthesized circuits are simple and accurate. Full-wave simulations are carried out to obtain the angular dispersion of different structures, and the calculated results are in good agreement with those of the equivalent circuit. A third-order ASS with bandpass response and a second-order ASS with a tunable bandwidth are given as design examples. The implemented second-order ASS shows the 0.33 to 0.52 tunable bandwidth in the angular domain. The transmission loss is better than 1.2 dB when the incidence angle is 65°-77°. The simulation results and calculated results are in good agreement with the measured results.</p>}}, author = {{Qin, Tao and Lin, Xian Qi and Yao, Yao and Liu, Yong and Liu, Hao and Hao, Peng and Mei, Peng}}, issn = {{0018-9480}}, keywords = {{Angular selective surface (ASS); equivalent circuit; frequency selective surface; meta-surface; spatial angular filter}}, language = {{eng}}, month = {{06}}, number = {{6}}, pages = {{2625--2638}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Transactions on Microwave Theory and Techniques}}, title = {{Efficient Synthesis of Angular Selective Surfaces Based on Accurate Equivalent Circuit Analysis}}, url = {{http://dx.doi.org/10.1109/TMTT.2022.3232109}}, doi = {{10.1109/TMTT.2022.3232109}}, volume = {{71}}, year = {{2023}}, }