Abstract
A single-arm rectangular spiral antenna has been investigated to obtain dual circular polarization of tilted beam. The proposed rectangular spiral antenna is printed on a finite size dielectric substrate (εr=3. 27) backed by a finite size-conducting plane. Spiral arm length (L) is varied from L=0.95λo to L=4.06λo to choose the length that yields the proper axial ratio and gain. L is chosen to be two values: L1=1.05λo and L2=3. 35λo. L1 radiates axial beam and L2 radiates tilted beam. Spiral radiates right hand circular polarization (RHCP) in its axial beam (L1=1.05λo) due to winding sense. In addition, spiral radiates dual circular polarization (RHCP and LHCP) at tilted beam (L2=3.35λo) in one antenna element.
| Original language | English |
|---|---|
| Pages (from-to) | 795-798 |
| Number of pages | 4 |
| Journal | IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) |
| Volume | 1 |
| State | Published - 2004 |
| Event | IEEE Antennas and Propagation Society Symposium 2004 Digest held in Conjunction with: USNC/URSI National Radio Science Meeting - Monterey, CA, United States Duration: 20 Jun 2004 → 25 Jun 2004 |