Title :
Near field propagation law & a novel fundamental limit to antenna gain versus size
Author :
Schantz, Hans Gregory
Author_Institution :
Q-Track Corp., Huntsville, AL, USA
Abstract :
The paper presents a theoretical analysis of the near field channel in free space. The theoretical model is then validated by comparison to data measured in an open field. The results are important for low frequency RF systems, such as those operating at short range in the AM broadcast band (525-1715 kHz). Finally, the paper establishes a novel fundamental limit for antenna gain versus size.
Keywords :
antenna theory; radiowave propagation; 525 to 1715 kHz; AM broadcast band; antenna gain; low frequency RF systems; near field channel; near field propagation law; Antenna measurements; Antennas and propagation; Bandwidth; Broadcasting; Cellular networks; Equations; Microwave frequencies; Radio frequency; Receiving antennas; Transmitting antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552223
