Tunable microwave devices with auto-adjusting matching circuit

Details Tunable microwave devices with auto-adjusting matching circuit Tunable microwave devices with auto-adjusting matching circuit

2011-01-04

2011-01-04

Le, Thanh C (Department: 2618)

Telecommunications

Transmitter

Including tuning

C455S129000

Reexamination Certificate

active

07865154

ABSTRACT:
An embodiment of the present invention provides an apparatus, comprising an input port and a dynamic impedance matching network capable of determining a mismatch at the input port and dynamically changing the RF match by using at least one matching element that includes at least one voltage tunable dielectric capacitor. The matching network may be a “Pi”, a “T”, or “ladder” type network and the apparatus may further comprise at least one directional coupler capable of signal collection by sampling a portion of an incident signal, a reflected signal or both. In an embodiment of the present invention, the apparatus may also include a control and power control & logic unit (PC LU) to convert input analog signals into digital signals and sensing VSWR phase and magnitude and processing the digital signals using an algorithm to give it a voltage value and wherein the voltage values may be compared to values coming from the coupler and once compared and matched, the values may be passed to a Hi Voltage Application Specific Integrated Circuit (HV ASIC) to transfer and distribute compensatory voltages to the matching network elements.

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