Amplitude and Phase Calibration at a Receiver Chip in an Antenna Array

a receiver chip and antenna array technology, applied in the field of antenna array in a wireless system, can solve the problems of imperfect cancellation by an adder, degraded signal reception,

Active Publication Date: 2018-11-08
MOVANDI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The calibration system effectively minimizes signal parameter deviations, improving signal reception quality and reducing crosstalk, resulting in enhanced signal strength and stability across antenna array paths.

Problems solved by technology

Such deviation in the one or more signal parameters may result in degraded signal reception.
For example, phase error introduces crosstalk between radio channels, while gain mismatch results in imperfect cancellation by an adder.

Method used

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  • Amplitude and Phase Calibration at a Receiver Chip in an Antenna Array
  • Amplitude and Phase Calibration at a Receiver Chip in an Antenna Array
  • Amplitude and Phase Calibration at a Receiver Chip in an Antenna Array

Examples

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Embodiment Construction

[0016]Certain embodiments of the disclosure may be found in a method and system for calibration of signal parameters at a receiver chip in an antenna array of a communication device. In the following description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown, by way of illustration, various embodiments of the present disclosure.

[0017]FIG. 1 is a network environment diagram that illustrates an exemplary communication device in communication with other communication devices via a communication network, in accordance with an exemplary embodiment of the disclosure. With reference to FIG. 1, there is shown a communication device 102 that may include a plurality of antenna elements 104(1) to 104(N), collectively referred to as an antenna array 104 or steerable antenna array 104, in a network environment 100. The communication device 102 may further include a transmitter chip array 106. The communication device 102 may further include a rec...

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Abstract

A calibration system, in a receiver chip, receives a plurality of receive signals at a plurality of receive paths. A first receive path and a second receive path is selected for a first receive signal and a second receive signal, respectively. A first signal parameter of the second receive signal is adjusted relative to the first signal parameter of the first receive signal to maximize a first signal strength value of an added signal or minimize a second signal strength value of a subtracted signal. Based on the adjusted first signal parameter, an offset of the first signal parameter is calibrated. Further, based on a matching of the second signal parameter in the second receive path relative to the second signal parameter in the first receive path, value of the second signal parameter is calibrated.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS / INCORPORATION BY REFERENCE[0001]This Application makes reference to application Ser. No. ______ (Attorney Docket No. MOV1001), which is filed concurrently herewith.[0002]The above referenced Application is hereby incorporated herein by reference in its entirety.FIELD OF TECHNOLOGY[0003]Certain embodiments of the disclosure relate to an antenna array in a wireless system. More specifically, certain embodiments of the disclosure relate to a method and system for calibration of a receiver chip in an antenna array.BACKGROUND[0004]Recent advancements in the field of wireless telecommunication have witnessed various multipath propagation techniques and methods, such as multi-antenna array system, for enhancing capacities of radio channels. Exemplary use cases of the multi-antenna array system are beam forming and beam steering techniques. In accordance with such techniques, a transmitter radiates or steers radio waves in a specific direction by adju...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): H04B7/08H04B7/06
CPCH04B7/0842H04B7/0617H04B7/0837H04B17/21H04B17/318
InventorSRIDHARAN, KARTIKROFOUGARAN, AHMADREZABOERS, MICHAELYOON, SEUNGHWANGHARAVI, SAMSHIN, DONGHYUPSHIRINFAR, FARIDWU, STEPHENROFOUGARAN, MARYAM
OwnerMOVANDI CORP