Active multiplexer for a multiple antenna transceiver
OwnerJoshua Posamentier, Rish Mehtainventors
Life of this patent
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Abstract
A single antenna may be powered to illuminate or transmit to a receiver such as an RFID tag. That tag may then provide a responsive signal to a plurality of antennas, each of which are active. The signals from those antennas may be analyzed to determine which signal has the highest quality. This may be used to select a particular signal for future analysis or to select a particular antenna for use as both a transmission and reception antenna for future operations. For example, the antenna which provides the strongest signal may be utilized to further illuminate a given RFID tag.
Claims37
a method comprising:
- transmitting a signal over one of at least two antennas;
- and
- receiving a response to said transmitted signal on both of said antennas.
A radio frequency transceiver comprising:
- a transmission modulator to selectively transmit a signal over one of at least two antennas;
- and
- a first and second receive chains, said first and second receive chain coupled to a different antenna to receive a signal.
The transceiver of claim 15 including a switch coupled to said transmission modulator to enable one of at least two antennas to be selected for transmission.
An article comprising a medium storing instructions that, if executed, enable a transceiver to:
- transmit a signal over one of at least two antennas;
- and
- receive a response to said transmitted signal on both of said antennas.
The article of claim 26 further storing instructions that, if executed, enable the transceiver to transmit a signal over the antenna that previously received the strongest signal.
A system comprising:
- a set of at least two antennas;
- and
- a radio frequency transceiver, coupled to said antennas, said radio frequency transceiver including a transmission modulator to selectively transmit a signal over one of at least said two antennas, and a first and a second receive chain, said first and second receive chains coupled to a different antenna to receive a signal.
Dependencies are inferred from the claim text.