Unlock instant, AI-driven research and patent intelligence for your innovation.

Planar dipole antenna with dual-frequency trap reflector

A dipole antenna, notch reflection technology, applied in the direction of antenna, radiating element structure, electrical components, etc., can solve the problems of low gain and inapplicability, and achieve the effect of gain suppression, increase gain, and filter interference

Inactive Publication Date: 2014-12-24
SOUTHEAST UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its gain is low, so it is not suitable for some occasions with high gain requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Planar dipole antenna with dual-frequency trap reflector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with drawings and embodiments.

[0017] The technical solution adopted in the present invention is: the planar dipole antenna of the dual-frequency notch reflector includes two vibrator radiation patches 1, feeding transmission line 2, dielectric substrate 5 and notch reflector 6; the vibrator radiation patch 1 , the feeding transmission line 2 and the notch reflector 6 are all on the dielectric substrate 5; the shape of the two oscillator radiation patches 1 is rectangular, and the two oscillator radiation patches 1 are printed on both sides of the dielectric substrate 5 in an antipodal shape. Connect with the conduction band 3 of the feeder transmission line and the ground 4 of the feeder transmission line respectively at the end 10 of the feeder transmission line; the notch reflector 6 consists of two sections with different lengths, open-ended left double-wire open line 11 and right double-wire Th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a planar dipole antenna with a dual-frequency trap reflector. The planar dipole antenna comprises two oscillator radiation patches (1), a feeder transmission line (2), a dielectric substrate (5) and the trap reflector (6). The oscillator radiation patches are printed on two sides of the dielectric substrate (5) in an antipode manner and are connected with a conduction band (3) and a ground (4) of the feeder transmission line at a tail end (10) of the feeder transmission line, respectively. The trap reflector (6) is composed of a left dual open-circuit line (11) and a right dual open-circuit line (12) unequal in length and both open at the tail; a conduction band and a ground of the trap reflector are connected with the conduction band (3) and the ground (4) of the feeder transmission line at a loading point (9) of the trap reflector, respectively. The trap reflector can serve as a reflector in the operating frequency of the antenna, so that antenna gain is increased; meanwhile, the trap reflector can serve as a filter in two trap frequencies less than the operating frequency, so that radiation of the antenna is suppressed.

Description

technical field [0001] The invention relates to an antenna, in particular to a planar dipole antenna with a dual-frequency notch reflector, and belongs to the technical field of antenna manufacturing. Background technique [0002] As an important front-end device in a wireless communication system, the antenna can not only radiate or receive useful radio frequency signals, but also radiate or receive indiscriminately for other useless or harmful signals falling within its working frequency band. In some cases, this situation will cause greater interference to the antenna transceiver system, such as image frequency signal interference in a superheterodyne receiver. Due to its high sensitivity and selectivity, the superheterodyne structure is widely used in modern communication systems and radar systems, so image frequency suppression measures are essential. A common solution is to insert an image filter in the radio frequency circuit to filter out the image frequency signal ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q15/14H01Q19/10
Inventor 殷晓星赵洪新
Owner SOUTHEAST UNIV