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Printed antenna

A technology for printing antennas and loop antennas, applied in the field of antennas, can solve the problems of high radiation efficiency, small operating frequency coverage of loop antennas, etc., and achieve the effect of expanding coverage modes

Pending Publication Date: 2021-07-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the single radiation mode of the loop antenna cannot achieve high radiation efficiency in different frequency bands, resulting in a small coverage of the operating frequency of the loop antenna.

Method used

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Examples

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Embodiment Construction

[0046] The embodiment of the present application provides a printed antenna, which expands the optional working frequency and the coverage pattern of the radiation pattern of the antenna. The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements no...

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Abstract

The embodiment of the invention provides a printed antenna, the selectable working frequency of the antenna and the coverage mode of the directional diagram are expanded. The printed antenna is printed on the substrate, the substrate is also provided with a feed source module, and the printed antenna comprises an annular antenna body, a feed port and a switching device; the loop antenna body comprises a first end and a second end, a distance is formed between the first end and the second end, a closed loop is formed by a connecting line between the first end and the second end and the loop antenna body, the first end is connected with the feed source module through the feed port, and the second end is connected with a grounding point (GND); the feed source module is used for outputting a feed signal to the loop antenna body through the feed port; and the loop antenna body comprises a plurality of loop antenna branches, a switching device is arranged between every two adjacent loop antenna branches, and the switching devices are used for connecting or disconnecting the two adjacent loop antenna branches.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 201911345171.7 and the title of the invention "a printed antenna" submitted to the China Patent Office on December 23, 2019, the entire contents of which are incorporated in this application by application. technical field [0002] The present application relates to the field of antennas, in particular to a printed antenna. Background technique [0003] At present, more and more electronic devices require a built-in antenna to send and receive signals, and the antenna is usually arranged on a printed circuit board (Printed Circuit Board, PCB). When transmitting, the antenna converts the high-frequency current of the transmitter into space electromagnetic waves, and when receiving, the antenna converts the electromagnetic waves intercepted from space into high-frequency currents and sends them to the receiver. [0004] There are many types of antennas, and different appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q7/00
CPCH01Q1/38H01Q1/50H01Q7/00H01Q3/247H01Q15/14H01Q7/005H01Q1/36H01Q19/10
Inventor 武东伟邵金进石操
Owner HUAWEI TECH CO LTD