Dual antenna base station for improved RFID localization
First Claim
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1. A system comprising:
- at least one base station that includesa first receiving module that includes a first antenna, said first antenna being characterized by a main lobe that encompasses a first solid angle, where sensitivity of said first antenna to signals arriving at an angle which said first solid angle subsumes is greater than signals arriving at any other angle, and is greatest at a first direction;
a second receiving module that includes a second antenna; and
a processing module processes the signal received by said first antenna and the signal received by said second antenna to develop output information;
where the second antenna is arranged to be subjected to essentially the same signals to which the first antenna is subjected.
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Abstract
A base station that uses an antenna assembly and associated signal processing where the antenna assembly includes at least one directional antenna, developing information from which a determination is made regarding the direction from which a received signal is coming. By employing a plurality of such base stations the location of a transmitting tag is ascertained.
9 Citations
17 Claims
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1. A system comprising:
at least one base station that includes a first receiving module that includes a first antenna, said first antenna being characterized by a main lobe that encompasses a first solid angle, where sensitivity of said first antenna to signals arriving at an angle which said first solid angle subsumes is greater than signals arriving at any other angle, and is greatest at a first direction; a second receiving module that includes a second antenna; and a processing module processes the signal received by said first antenna and the signal received by said second antenna to develop output information; where the second antenna is arranged to be subjected to essentially the same signals to which the first antenna is subjected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
Specification