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WiSpry unveils tunable RF capacitor for LTE antennas

20 Nov 2013

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WiSpry has released its WS1050 tunable RF capacitor, which combines three individually controllable and configurable capacitors into a single chip. The chip allows for the tuning of antennas for LTE equipment and infrastructure across a broad frequency range, according to the company.

With 18pF of total capacitance, each capacitor is individually tunable. The linear performance of the chip offers full-power LTE third harmonics as low as -150dBc, which is typically 30 dB better than other solutions. Support for up to eight USIDs allows for multiple tuners per system. The WS1050 is optimally suited for antenna tuning, particularly for carrier aggregation solutions. However, the WS1050 allows a smartphone antenna to tune over a range of frequencies, eliminating the need for a separate low-band LTE antenna. The flexible RF capacitor also covers the proposed 600MHz band.

The product is also suitable for measurement and test instruments, phase shifters, tunable filters, and amplifiers. ADS simulation models available and the part comes in an LGA package.

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