MONOPOLE SLOT AS A TWO-PORT DIVERSITY ANTENNA FOR UHF LAND-MOBILE RADIO SYSTEMS

Urban land-mobile communication systems designed to operate over the upper portion of the UHF band are very susceptible to frequent wind signal variations. Deep fades arise due to the presence of many obstructions in the propagation path between the transmitter and receiver. One way to combat the effects of Rayleigh fading due to multipath propagation is to provide a diversity combiner in the mobile receiving system with two signals, each containing the same information, which fade independently of one another. Such a system can virtually eliminate deep fades from the receiver output. Described herein is a method of obtaining two diversity branches, with independent signals if so desired, from a single two-port antenna which is both well matched to the transponder and efficient over the land-mobile frequency band from 820-890 MHz.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00189545
• Corporate Authors:

  Institute of Electrical and Electronics Engineers (IEEE)

  Operations Center, 445 Hoes Lane, P.O. Box 1331
  Piscataway, NJ  United States  08855-1331
• Authors:
  • Halpern, B M
  • Mayes, P E
• Publication Date: 1984-5

Media Info

• Features: References;
• Pagination: p. 76-83
• Serial:
  • IEEE Transactions on Vehicular Technology
  • Volume: VT33
  • Issue Number: 2
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • ISSN: 0018-9545
  • Serial URL: http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=25

Subject/Index Terms

• TRT Terms: Antennas; Automobiles; Communication systems; Radio; Ultrahigh frequency
• Old TRIS Terms: Land-mobile radio systems; Radio antennas
• Subject Areas: Highways; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00390120
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Nov 30 1984 12:00AM