Systems and methods for improved power control in millimeter wave transceivers
First Claim
1. A system for measuring high frequency response of a device under test having improved power leveling, comprising:
- a signal source configured to generate a test signal comprising a radio frequency (RF) signal; and
a fine modulator configured to modulate an amplitude of the generated test signal, wherein the amplitude of the test signal is targeted based on a requested power;
an upconverter configured to multiply a frequency of the test signal;
a fine leveling loop configured to detect an intermediate frequency (IF) signal generated in response to the upconverter test signal, wherein modulation of the amplitude of the generated test signal by the modulator is adjustable based on the IF signal detected by the leveling loop; and
wherein the leveling loop includes dynamic gain adjustment; and
a coarse modulator; and
a coarse leveling loop configured to detect the modulated test signal propagating between the modulator and the upconverter, wherein the modulation of the amplitude of the generated test signal by the coarse modulator is adjustable based on power of the modulated test signal detected by the coarse leveling loop;
wherein the signal source is connectable with one or both of the coarse modulator and the fine modulator to modulate the generated test signal.
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Accused Products
Abstract
In an embodiment, a system for measuring high frequency response of a DUT having improved power leveling includes a signal source, a modulator, an upconverter, and a leveling loop having dynamic gain adjustment. The signal source generates a test signal and the modulator modulates the amplitude of the generated test signal to target a requested power. The converter multiplies a frequency of the test signal. The leveling loop is configured to detect an intermediate frequency (IF) signal generated in response to the upconverted test signal. Modulation of the amplitude of the generated test signal by the modulator is adjustable based on the IF signal detected by the leveling loop.
70 Citations
17 Claims
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1. A system for measuring high frequency response of a device under test having improved power leveling, comprising:
- a signal source configured to generate a test signal comprising a radio frequency (RF) signal; and
a fine modulator configured to modulate an amplitude of the generated test signal, wherein the amplitude of the test signal is targeted based on a requested power;
an upconverter configured to multiply a frequency of the test signal;
a fine leveling loop configured to detect an intermediate frequency (IF) signal generated in response to the upconverter test signal, wherein modulation of the amplitude of the generated test signal by the modulator is adjustable based on the IF signal detected by the leveling loop; and
wherein the leveling loop includes dynamic gain adjustment; and
a coarse modulator; and
a coarse leveling loop configured to detect the modulated test signal propagating between the modulator and the upconverter, wherein the modulation of the amplitude of the generated test signal by the coarse modulator is adjustable based on power of the modulated test signal detected by the coarse leveling loop;
wherein the signal source is connectable with one or both of the coarse modulator and the fine modulator to modulate the generated test signal. - View Dependent Claims (2, 3)
- a signal source configured to generate a test signal comprising a radio frequency (RF) signal; and
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4. A system for measuring high frequency response of a device under test having improved power leveling, comprising:
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a signal source configured to generate a test signal comprising a radio frequency (RF) signal; and a modulator configured to modulate an amplitude of the generated test signal, wherein the amplitude of the test signal is targeted based on a requested power; an upconverter configured to multiply a frequency of the test signal; a fine leveling loop configured to detect an intermediate frequency (IF) signal generated in response to the upconverted test signal, wherein modulation of the amplitude of the generated test signal by the modulator is adjustable based on the IF signal detected by the fine leveling loop; and wherein the fine leveling loop includes dynamic gain adjustment; and a coarse leveling loop configured to detect the modulated test signal propagating between the modulator and the upconverter, wherein modulation of the amplitude of the generated test signal by the modulator is adjustable based on power of the modulated test signal detected by the coarse leveling loop; and wherein the coarse leveling loop includes dynamic gain adjustment. - View Dependent Claims (5, 6)
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7. A system for measuring high frequency response of a device under test having improved power leveling, comprising:
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a transceiver including a signal source configured to generate a test signal comprising a radio frequency (RF) signal; a modulator configured to modulate an amplitude of the test signal, wherein the amplitude of the test signal is targeted based on a requested power; an upconverter configured to multiply a frequency of the test signal; a first signal path between the transceiver and the upconverter; a second signal path between the upconverter and a port connectable with the device under test; a first leveling loop connectable with the modulator and configured to detect the modulated test signal as the modulated test signal propagates along the first signal path, wherein when connected to the first leveling loop, the modulator adjusts the amplitude of the generated test signal based on a comparison of power of the modulated test signal detected by the first leveling loop with the requested power; and a second leveling loop connectable with the modulator and configured to detect an intermediate frequency (IF) signal generated in response to the upconverted test signal as the upconverted test signal propagates along the second signal path, wherein when connected to the second leveling loop, the modulator adjusts the amplitude of the generated test signal based on the IF signal detected by the second leveling loop; wherein the first leveling loop and the second leveling loop each include dynamic gain adjustment. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method of leveling power in a system having a signal source, at least one modulator, and an upconverter for measuring high frequency response of a device under test, comprising:
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generating a test signal comprising a radio frequency (RF) signal using the signal source, wherein an amplitude of the generated test signal is targeted based on a requested power; modulating the amplitude of the generated test signal; detecting the modulated test signal using a coarse leveling loop; adjusting the modulation of the generated test signal based on a comparison of power of the modulated test signal as detected by the coarse leveling loop with the requested power; upconverting the modulated test signal using an upconverter; detecting an intermediate frequency (IF) signal generated in response to the upconverted test signal using a fine leveling loop; and refining the adjustment of the modulation of the generated test signal based on a comparison of power of the IF signal as detected by the fine leveling loop with the requested power. - View Dependent Claims (15)
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16. A method of leveling power in a system for measuring high frequency response of a device under test, comprising:
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generating a test signal using a transceiver, wherein an amplitude of the generated test signal is targeted based on a requested power; modulating the amplitude of the generated test signal using a modulator; upconverting the modulated test signal to a millimeter wave frequency using an upconverter; for a first type of device under test connecting a first leveling loop to the modulator, detecting the modulated test signal using the first leveling loop, and adjusting the amplitude of the generated test signal based on a comparison of power of the modulated test signal as detected by the first leveling loop with the requested power; and for a second type of device under test connecting a second leveling loop to the modulator, detecting an intermediate frequency (IF) signal generated in response to the upconverted test signal using the second leveling loop, and adjusting the amplitude of the generated test signal based on the IF signal. - View Dependent Claims (17)
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Specification