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| Current radio transmitter and receiver (transceiver) technology requires a separate band pass (BP) or band stop (BS) filter for each band of frequencies of operation (multiband operation). As a result, each band of frequencies requires a separate, additional filter, which increases the overall size of the transceiver package. A single filter capable of operating over multiple frequencies would be an improvement over existing transceiver technology. Researchers at Purdue University have developed a tunable BP/BS filter that can be operated over multiple bands of frequencies. In addition, bandwidth of the filter can be adjusted to minimize interference from adjacent frequencies. This tunable filter significantly reduces the number of filters needed for multiband transceivers, thereby reducing the size of the transceiver package. Advantages: -Smaller package size -Adjustable center frequency -Adjustable bandwidth Potential Applications: -Component for tunable front end receivers and transmitters |
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Apr 1, 2011
Utility Patent
United States
9,024,709
May 5, 2015
Oct 3, 2009
PCT-Patent
WO
(None)
(None)
Oct 3, 2008
Provisional-Patent
United States
(None)
(None)
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Purdue Office of Technology Commercialization 1801 Newman Road West Lafayette, IN 47906 Phone: (765) 588-3475 Fax: (765) 463-3486 Email: otcip@prf.org |