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Phased array antenna system and wireless communication device

A phased array antenna and antenna element technology, applied in radio transmission systems, antennas, transmission systems, etc., can solve problems such as damage to radio frequency power amplifiers, high voltage standing wave ratio, etc.

Active Publication Date: 2019-10-22
QORVO US INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chaotic antenna impedance fluctuations can in turn lead to a voltage standing wave ratio (VSWR) high enough to damage the RF power amplifier driving the phased array antenna

Method used

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  • Phased array antenna system and wireless communication device
  • Phased array antenna system and wireless communication device
  • Phased array antenna system and wireless communication device

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Embodiment Construction

[0014] The embodiments set forth below represent the necessary information to enable those skilled in the art to practice the embodiments and illustrate the best modes for practicing the embodiments. Upon reading the following description in light of the accompanying drawing figures, those skilled in the art will understand the concepts of the disclosure and will recognize applications of these concepts not particularly addressed herein. It is to be understood that these concepts and applications are within the scope of the disclosure and the appended claims.

[0015] It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present di...

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PUM

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Abstract

The present invention discloses a phased array antenna system having a plurality of antenna elements arranged into an array. In the phased array antenna system, each of a plurality of amplifier circuitries has an output terminal coupled to a corresponding one of the plurality of antenna elements and includes a power amplifier having a control terminal coupled to an input terminal. The power amplifier has a first current terminal coupled to the output terminal and a second current terminal coupled to a fixed voltage node. Further included in each of the plurality of amplifier circuitries is a current limiter having a bias terminal coupled to the control terminal of the power amplifier to adjust a bias point of the power amplifier to limit current flowing through the first current terminal and the second current terminal to within a predetermined current range. Some embodiments also include a voltage limiter to limit voltage amplitude at the output terminal.

Description

[0001] related application [0002] This application is related to U.S. Patent Application Serial No. 14 / 933,552, filed November 5, 2015, which claims priority to Provisional Patent Application Serial No. 62 / 077,481, filed November 10, 2014, the disclosure of which Incorporated herein in its entirety by reference. technical field [0003] The present disclosure generally relates to protecting power amplifiers driving phased array antenna systems employed in telecommunication devices such as smartphones. Background technique [0004] The development of fifth generation (5G) wireless networks with higher modulation bandwidths and data rates has increased demands on cellular handset technology. For example, phased array antennas are envisioned as a key component needed to meet these increased demands. However, a challenge arises in protecting the power amplifiers that drive phased array antennas. The problem is caused at least in part by chaotic antenna impedance fluctuation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q23/00H03F3/24H04B1/40
CPCH01Q21/00H01Q23/00H03F3/24H04B1/40H01Q1/243H01Q1/245H01Q3/2605H01Q3/34H01Q21/065H03F1/52H03F3/19H03F3/245H03F2200/426H03F2200/451H01Q21/061H03F2200/471H03F2200/129H03F2200/462H04B1/04H04B7/00
Inventor 亚历山大·韦恩·希耶塔拉纳迪姆·赫拉特迈克尔·F·奇布拉
Owner QORVO US INC