A near field propagation law & a novel fundamental limit to antenna gain versus size

IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)

Volumn 3 A, Issue , 2005, Pages 237-240

  Schantz, Hans Gregory ^a  

^a Q Track Corporation   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AM BROADCAST BAND; ANTENNA GAIN; LOW FREQUENCY RF SYSTEMS; THEORETICAL MODEL;

BANDWIDTH; CHANNEL CAPACITY; ELECTROMAGNETIC WAVE PROPAGATION; GAIN MEASUREMENT; MATHEMATICAL MODELS; RADIO BROADCASTING; RADIO SYSTEMS;

ANTENNAS;

EID: 33846890835     PISSN: 15223965     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/APS.2005.1552223     Document Type: Conference Paper

References (7)

1. Charles Capps, "Near Field or Far Field," EDN, August 16, 2001, pp. 95-102. This excellent article is available online at: http://www.edn. com/contents/images/150828.pdf
2. Hans Schantz, Near Field Channel Model, IEEE P802.15-04/0417r2, October 27, 2004.
3. Harald Friis, "A Note on a Simple Transmission Formula," Proc. IRE, 34, 1946, pp. 254-256.
4. Section 15.219 authorizes a transmit power of 100 mW (+20 dBm) into an antenna less than 3 m in dimensions on an unlicensed basis in the AM broadcast band.
5. For more information on NFER™ technology see http://www.q-track.com.
6. Harold A. Wheeler, "Fundamental Limitations of Small Antennas," Proc. IRE, 35, (1947), pp. 1479-1484.
7. L.J. Chu, "Physical Limitations of Omni-Directional Antennas," Journal of Applied Physics, 19, December 1948, pp. 1163-1175