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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Gang Zhao Yong-Chang Jiao Fan Zhang Fu-Shun Zhang |
| Copyright Year | 2002 |
| Abstract | A subwavelength element is presented for designing a circularly polarized (CP) reflectarray that converts the linearly polarized incident field of the feed into an outgoing circularly polarized field. To evaluate the performance of the designed element, a parametric study is carried out using Ansoft HFSS. Compared to the conventional near-resonant patch, the subwavelength one can realize a more similar behavior for the phase curves at different frequencies, leading to broader bandwidth. The phase shifts for both linear polarizations can be controlled by varying the x- and y-dimension of the element. A prime-focus reflectarray with this type of element has been designed and implemented, and a superior bandwidth performance has been verified, compared to a reflectarray with conventional ¿/2 elements. The measured results show that the obtained 1-dB gain and 3-dB axial ratio bandwidths of the reflectarray with subwavelength elements can reach as large as 17% and 11%, respectively. |
| Sponsorship | IEEE Antennas and Propagation Society |
| Starting Page | 330 |
| Ending Page | 333 |
| Page Count | 4 |
| File Size | 262192 |
| File Format | |
| ISSN | 15361225 |
| Volume Number | 9 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Polarization Bandwidth Reflector antennas Manufacturing Antenna arrays Antenna feeds Phased arrays Apertures Microstrip Microwave technology single-layer Broadband circular polarization reflectarray |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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