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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Maddio, S. Cidronali, A. Magrini, I. Manes, G. |
| Copyright Year | 2007 |
| Description | Author affiliation: Univ. of Florence, Florence (Maddio, S.; Cidronali, A.; Magrini, I.) |
| Abstract | In this paper a design method for a circular polarized small-size microstrip antenna on a short dielectric layer is presented. It's known that exciting two detuned modes with a single coaxial probe makes possible circular polarization (CP) but as yet little efforts were made in order to control CP frequency and exact 50 ohm matching. A straight forward circuital model for the device can solve both this issues and gives hint for the best radiator design; our prototype is a circular disc slotted by a concentric elliptical cut in order to slightly perturb the central symmetry and obtain the modal degeneration. It includes a SPDT to allow the switching between the two CP. The prototype is designed for 2.44 GHz and exhibits a return loss of 19 dB, an impedance BW of 120 MHz a directivity of 6 dB and an estimated gain of 1.8 dB. |
| Starting Page | 262 |
| Ending Page | 265 |
| File Size | 242436 |
| Page Count | 4 |
| File Format | |
| ISBN | 9782874870019 |
| DOI | 10.1109/EUMC.2007.4405176 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-10-09 |
| Publisher Place | Germany |
| Access Restriction | Subscribed |
| Rights Holder | European Microwave Association |
| Subject Keyword | Design methodology Broadband antennas Microstrip antennas Patch antennas Polarization Prototypes Dielectrics Coaxial components Probes Frequency |
| Content Type | Text |
| Resource Type | Article |
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