Multi-Band Circularly Polarized Antennas

Chapter 4 discusses different types of multi-band CP antennas and their design techniques. Multi-band CP antennas are important for modern GNSS systems, satellite communication systems, GPS receivers and wireless power transmission. Design techniques for various types of multi-band CP antennas are explained and discussed. These include multi-band CP microstrip patch antennas, multi-band QHAs and PQHAs, multi-band CP slot antennas, multi-band CP dielectric resonator antennas and multi-band CP loop antennas. Different types of dual-band dual-sense CP antennas are also illustrated. A review of recent development in multi-band CP antennas is presented, together with a list of references at the end of the chapter.