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Antenna array in an RFID system

  • US 6,184,841 B1
  • Filed: 12/31/1996
  • Issued: 02/06/2001
  • Est. Priority Date: 12/31/1996
  • Status: Expired due to Term
First Claim
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1. A radio frequency identification system, comprising:

  • an interrogator having a transmit antenna and a receive antenna, an antenna gain of said transmit antenna being less than an antenna gain of said receive antenna, and a vertical beamwidth of said receive antenna being greater than a horizontal beamwidth of said receive antenna.

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