Abstract
This paper presents a dual-band circularly polarized slotted monopole antenna. This antenna is fed by a 50 Omega microstrip line. The measured results demonstrate that the slotted monopole antenna has a return loss < 10dB, an axial ratio (AR) < 3dB, and 6 % circular polarization bandwidth with respect to the center frequency at 2.4 GHz, and 1.7 % circular polarization bandwidth with respect to the center frequency at 5.25 GHz. This antenna can excite a left-hand circular polarization (LHCP) at 2.4 GHz, and right-hand circular polarization at 5.25 GHz. At the center frequency of 2.4 GHz and 5.2 GHz, the measured impedance bandwidth are about 190 MHz and 180 MHz respectively.
| Original language | English |
|---|---|
| Title of host publication | Asia-Pacific Microwave Conference (APMC) |
| Pages | 1866-1869 |
| Number of pages | 4 |
| State | Published - 2011 |
Keywords
- circular polarization; monopole; slot antennas