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Switchable multi-radiator high band antenna apparatus

  • US 9,350,081 B2
  • Filed: 01/14/2014
  • Issued: 05/24/2016
  • Est. Priority Date: 01/14/2014
  • Status: Active Grant
First Claim
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1. A mobile radio frequency communication device, comprising:

  • an enclosure and an electronics assembly contained substantially therein, said electronics assembly comprising a ground plane and a first and a second feed port; and

    a multiband antenna apparatus, comprising;

    a metal cup structure disposed proximate one end of the enclosure and configured to be electrically connected to the ground plane via a first and a second ground element;

    a first and a second feed structure;

    a ground structure configured to be electrically connected to the ground plane; and

    a selector apparatus configured to selectively electrically connect one of (i) the first feed structure to the first feed port or (ii) the second feed structure to the second feed port;

    wherein;

    the first feed structure is configured to effectuate radio frequency communications within at least one high frequency band and at least one low frequency band;

    the second feed structure is configured to effectuate the radio frequency communications within the at least one high frequency band;

    the enclosure comprises a chassis and the cup, the cup being electrically separated from the chassis by a non-conductive slot thereby forming an operational antenna portion, the operational portion configured to form a first electromagnetic resonance in at least a second high frequency band;

    the second ground element is configured to be connected to the ground plane via a switching circuit comprising two or more alternate electrical signal paths; and

    the metal cup structure is configured to form a second electromagnetic resonance in at least a fourth and a third frequency bands.

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