2.45 GHz end-loaded dipole backed by a high impedance surface
- Resource Type
- Conference
- Authors
- Cure, David; Melais, Sergio; Weller, Thomas; Herzig, Paul; Roeder, Robert
- Source
- 2010 IEEE Antennas and Propagation Society International Symposium Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE. :1-4 Jul, 2010
- Subject
- Fields, Waves and Electromagnetics
Communication, Networking and Broadcast Technologies
Signal Processing and Analysis
Dipole antennas
Surface impedance
Bandwidth
Antenna measurements
Impedance
Substrates
Loss measurement
- Language
- ISSN
- 1522-3965
1947-1491
An end loaded planar open sleeve dipole (ELPOSD) antenna over an electromagnetic band gap (EBG) high impedance surface is presented. An ELPOSD consists of a printed dipole with two parasitic elements (sleeves) along its sides and capacitive loading at the end. This antenna is fed from beneath the ground plane by live vias connected to a microstrip to coplanar strip balun. The EBG structure is based on the Jerusalem Cross geometry and is sandwiched between two 1.27 mm-thick substrate layers, resulting in a total antenna thickness (excluding the feed layer) of ∼λ/50. Measured performance of the antenna demonstrates a bandwidth of 30 MHz at 2.45 GHz, with a gain of ∼3.5 dB.