Title :
A high-impedance ground plane applied to a cellphone handset geometry
Author :
Broas, Romulo F Jimenez ; Sievenpiper, Daniel F. ; Yablonovitch, Eli
Author_Institution :
Electromagn. Syst. Lab., Raytheon Co., El Segundo, CA, USA
fDate :
7/1/2001 12:00:00 AM
Abstract :
A high-impedance electromagnetic surface is a new type of metallic structure exhibiting high surface impedance and the suppression of propagating surface currents at a particular frequency band. We experimentally characterize such a high-impedance surface designed near 2.4 GHz. We describe an antenna built on such a surface, integrated into a printed circuit board that was designed for the form factor of a portable handset. Measurement shows high radiation efficiency near 2.4 GHz
Keywords :
UHF antennas; cellular radio; mobile antennas; telephone sets; 2.4 GHz; antenna ground plane; cellphone handset; form factor; high-impedance electromagnetic surface; metallic structure; portable communication; printed circuit board; radiation efficiency; surface impedance; surface wave; Capacitance; Cellular phones; Electromagnetic propagation; Electromagnetic radiation; Frequency; Geometry; Printed circuits; Rough surfaces; Surface impedance; Telephone sets;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
