Radio frequency complex reflection coefficient reader
First Claim
1. A radio frequency (RF) circuitry, comprising:
- a device configured to tap a transmission line and to pick up some of the electromagnetic signals traveling in both directions on the transmission line; and
a first detector configured to measure a power of a first portion of the tapped electromagnetic signal travelling in one direction on the transmission line;
a second detector configured to measure a power of a first portion of the tapped electromagnetic signal travelling in the other direction on the transmission line;
a third detector configured to measure a power of a first combined signal that comprises a second portion of the tapped electromagnetic signal travelling in the one direction on the transmission line and a second portion of the tapped electromagnetic signal travelling in the other direction of the transmission line;
a fourth detector configured to measure a power of a second combined signal that comprises a phase-shifted third portion of the tapped electromagnetic signal travelling in the one direction on the transmission line and a third portion of the tapped electromagnetic signal travelling in the other direction of the transmission line; and
a processor configured to determine, based on outputs from the first detector, the second detector, the third detector and the fourth detector, a relative magnitude and a relative phase of the electromagnetic signals that travel in different directions on the transmission lines.
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Accused Products
Abstract
A radio frequency (RF) circuitry includes a device that taps a transmission line and picks up some of electromagnetic signals traveling in both directions. The RF circuitry includes a first detector, a second detector, a third detector, and a processor. The first detector measures a power of a first portion of the tapped electromagnetic signal travelling in one direction. The second detector measures a power of a first portion of the tapped electromagnetic signal travelling in the other direction. The third detector measures a power of a combined signal which includes a second portion of the tapped electromagnetic signal travelling in the one direction and a second portion of the tapped electromagnetic signal travelling in the other direction. The processor determines, based on outputs from the detectors, a relative magnitude and a relative phase of the electromagnetic signals.
140 Citations
10 Claims
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1. A radio frequency (RF) circuitry, comprising:
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a device configured to tap a transmission line and to pick up some of the electromagnetic signals traveling in both directions on the transmission line; and a first detector configured to measure a power of a first portion of the tapped electromagnetic signal travelling in one direction on the transmission line; a second detector configured to measure a power of a first portion of the tapped electromagnetic signal travelling in the other direction on the transmission line; a third detector configured to measure a power of a first combined signal that comprises a second portion of the tapped electromagnetic signal travelling in the one direction on the transmission line and a second portion of the tapped electromagnetic signal travelling in the other direction of the transmission line; a fourth detector configured to measure a power of a second combined signal that comprises a phase-shifted third portion of the tapped electromagnetic signal travelling in the one direction on the transmission line and a third portion of the tapped electromagnetic signal travelling in the other direction of the transmission line; and a processor configured to determine, based on outputs from the first detector, the second detector, the third detector and the fourth detector, a relative magnitude and a relative phase of the electromagnetic signals that travel in different directions on the transmission lines. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification