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High frequency multi-turn loop antenna in cavity

  • US 5,341,148 A
  • Filed: 11/29/1991
  • Issued: 08/23/1994
  • Est. Priority Date: 11/29/1991
  • Status: Expired due to Term
First Claim
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1. A compact high frequency loop antenna comprising:

  • a conductive surface having a concave cavity formed therein for receiving a magnetic field having a given distribution within the cavity;

    current loop means located at least partially in said cavity and including a plurality of conductive loop elements forming a plurality of openings therein, each loop element being located in said cavity as a function of the distribution of the magnetic field distribution in said cavity, wherein at least two loop elements form different angles relative to each other to enhance the magnetic coupling between said current loop means and said conductive surface; and

    a first terminal coupled to said conductive loop element and providing electrical connection to a transceiver for transmitting and receiving desired signals.

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