Tunable microwave devices with auto-adjusting matching circuit
First Claim
1. An apparatus, comprising:
- an input port; and
a dynamic impedance matching network capable of determining a mismatch at said input port and dynamically changing the RF match by using at least one matching element that includes at least one voltage tunable dielectric capacitor.
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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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Citations
35 Claims
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1. An apparatus, comprising:
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an input port; and
a dynamic impedance matching network capable of determining a mismatch at said input port and dynamically changing the RF match by using at least one matching element that includes at least one voltage tunable dielectric capacitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 31, 32)
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9. The apparatus of claim 9, wherein said “
- ladder”
type network comprises at four inductors in series and includes three grounded matching capacitors in parallel connected to said inductors.
- ladder”
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17. A method, comprising:
matching the impedance of an RF signal received by an input port of a device by using a dynamic impedance matching network capable of determining a mismatch at said input port and dynamically changing the RF match by using at least one matching element that includes at least one voltage tunable dielectric capacitor. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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33. An auto-adjusting matching circuit, comprising:
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a first and second coupler to sample an incoming signal and an outgoing signal;
a matching network to receive said incoming signal and including a plurality of matching network elements comprising voltage tunable dielectric capacitors, wherein said matching network is capable of automatically adjusting an impedance of said incoming signal; and
a power control &
logic unit to produce a voltage to output ports from a High Voltage Application Specific Integrated Circuit to said plurality of matching network elements. - View Dependent Claims (34, 35)
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Specification