CN102412439A

CN102412439A - Novel global positioning system (GPS) antenna

Info

Publication number: CN102412439A
Application number: CN2010102933397A
Authority: CN
Inventors: 张一昉
Original assignee: YUNNAN GALAXY STAR TECHNOLOGY Co Ltd
Current assignee: YUNNAN GALAXY STAR TECHNOLOGY Co Ltd
Priority date: 2010-09-20
Filing date: 2010-09-20
Publication date: 2012-04-11

Abstract

The invention discloses a novel global positioning system (GPS) antenna, which is formed by serially connecting two spiral radiators and two bent radiators, wherein the two spiral radiators are formed by circling a long conductor 1 and a short conductor 2 which are not intersected in the same plane; the two bent radiators are formed by bending a long conductor 3 and a short conductor 4 which are not intersected in the same plane; the initial end of the long conductor 1 is connected with a radio frequency signal end S; the initial end of the short conductor 2 is connected with a radio frequency signal grounding end G; the tail end of the long conductor 1 is connected with the initial end of the short conductor 4; the tail end of the short conductor 2 is connected with the initial end of the long conductor 3; the tail ends of the long conductor 3 and the short conductor 4 are suspended; a tail conductor 5 is connected to the short conductor 4 and positioned between the two bent radiators; and the long conductors, the short conductors and the tail conductor are arranged in a cladding layer made of a low temperature co-fired ceramic material (LTCC). The novel GPS antenna has high radiating capacity, good frequency response, and small volume, and is particularly suitable for large-scale industrial production, low in production cost and wide in market prospect.

Description

A kind of Novel GPS antenna

Technical field

The invention belongs to wireless communication technology field, be specifically related to a kind of gps antenna.

Background technology

Gps antenna is the critical component of communication, navigation, positioning field GPS product, and its radiation efficiency, directivity, bandwidth, impedance matching property, size and manufacturing cost have great influence to the GPS product.At present, market strict demand GPS product develops towards " light, thin, short, little " direction, and characteristics such as its performance standard of quantitative requirement, accuracy, startability, location tracking sensitivity and product low-power consumption.And then the design of gps antenna also proposed high requirement, caused gps antenna small design difficulty to strengthen.Currently marketed gps antenna all can not be met the need of market far away from volume, frequency range, radiation efficiency, that aspect of cost.

Summary of the invention

The purpose of this invention is to provide a kind of Novel GPS antenna, the actual demand that market is little to the gps antenna volume to satisfy, bandwidth, radiation efficiency high, cost is low.

Technical scheme of the present invention is achieved in that at first to be spiraled by first group of mutually disjoint long conductor, short conductors isoplanar and constitutes two radiant bodies and constitute two warpage radiant bodies by second group of mutually disjoint long conductor, short conductors isoplanar warpage of spiraling; Again the tail end correspondence of two radiant bodies that spiral is connected and composed double plate and revolve radiant body, the tail end of two warpage radiant bodies also correspondence connects and composes two-fold curved spoke beam; Initiating terminal with first group leader's conductor connects the signal end S of radiofrequency signal or the signal ground end G of radiofrequency signal then; The initiating terminal of first group of short conductors connects the signal ground end G of radiofrequency signal or the signal end S of radiofrequency signal; The end of first group leader's conductor connects the initiating terminal of second group of short conductors; The end of first group of short conductors connects the initiating terminal of second group leader's conductor, and the end of second group leader's conductor and short conductors is unsettled respectively.At last the tail conductor is connected on second group of short conductors.

Wherein, on said long and short, the substrate that each conductor of tail can be arranged on dielectric, magnetizing mediums, electromagnetic medium material or in the coating layer, this substrate or coating layer can be low-temperature co-burning ceramic material (LTCC).

Radianting capacity of the present invention is strong, frequency response good, volume is little, be particularly suitable for mass industrialized production, low production cost, and market prospects are boundless.

Description of drawings

Fig. 1 is the gps antenna sketch map of the embodiment of the invention

Fig. 2 is 3 dimension antenna patterns of the embodiment of the invention

Fig. 3 is 2 dimension XZ planar radiation directional diagrams of the embodiment of the invention

Fig. 4 is 2 dimension XY planar radiation directional diagrams of the embodiment of the invention

Mark among the figure:

1. long conductor 2. short conductors 3. long conductors 4. short conductors 5. tail conductors

G. the signal end of the signal ground end S. radiofrequency signal of radiofrequency signal

Embodiment

Below in conjunction with accompanying drawing embodiments of the invention are specified:

With reference to accompanying drawing 1, the embodiment of the invention is spiraled by mutually disjoint long conductor 1, short conductors 2 isoplanars and is constituted two radiant bodies and constitute two warpage radiant bodies by mutually disjoint long conductor 3, short conductors 4 isoplanar warpages of spiraling; The tail end correspondence of two radiant bodies that spiral connects and composes double plate and revolves radiant body, and the tail end of two warpage radiant bodies also correspondence connects and composes two-fold curved spoke beam; The signal end S that then initiating terminal of long conductor 1 is connected radiofrequency signal; The initiating terminal of short conductors 2 connects the signal ground end G of radiofrequency signal; The end of long conductor 1 connects the initiating terminal of short conductors 4; The end of short conductors 2 connects the initiating terminal of long conductor 3, and the end of long conductor 3 and short conductors 4 is unsettled respectively.At last tail conductor 5 is vertically connected on the short conductors 4 of two-fold curved spoke beam tail end joint and between two warpage radiant bodies.Wherein, said long and short, each conductor of tail is arranged in the coating layer of low-temperature co-burning ceramic material (LTCC).

With reference to accompanying

drawing

2,3,4, can find out that through 3 peacekeepings, the 2 dimension antenna patterns of HFSS system emulation embodiments of the invention have maximum gain on the direction of top; Omnidirectional radiation intensity is even, changes less relatively.

The technical parameter that the embodiment of the invention reaches:

(1) typical gains: >=2dBi, efficient: >=70%, input impedance: 50 Ω,

Frequency bandwidth: 1.575GHz ± 40MHz;

(2) representative configuration size :≤13.5mm (length) * 5mm (wide) * 1mm (thick)

Embodiments of the invention have adopted low-temperature co-burning ceramic material LTCC as coating layer, have realized the purpose of design that radianting capacity is strong, frequency response good, volume is little.Product detects through emulation, superior performance, and contour structures is reasonable, and low, the environmental protection of energy consumption is particularly suitable for mass industrialized production, low production cost, market prospects are boundless.

Claims

1. a Novel GPS antenna is characterized in that: comprise two two warpage radiant bodies that spiral radiant body and be made up of mutually disjoint long conductor (3), short conductors (4) isoplanar warpage that spiraled and constituted by mutually disjoint long conductor (1), short conductors (2) isoplanar; The tail end correspondence of two radiant bodies that spiral connects and composes double plate and revolves radiant body, and the tail end of two warpage radiant bodies also correspondence connects and composes two-fold curved spoke beam; The initiating terminal of long conductor (1) connects the signal end (S) of radiofrequency signal or the signal ground end (G) of radiofrequency signal; The initiating terminal of short conductors (2) connects the signal ground end (G) of radiofrequency signal or the signal end (S) of radiofrequency signal; The end of long conductor (1) connects the initiating terminal of short conductors (4); The end of short conductors (2) connects the initiating terminal of long conductor (3), and the end of long conductor (3) and short conductors (4) is unsettled respectively.

2. a kind of Novel GPS antenna according to claim 1 is characterized in that: also comprise tail conductor (5); Tail conductor (5) is connected on the short conductors (4).

3. a kind of Novel GPS antenna according to claim 1 and 2 is characterized in that: long and short, each conductor of tail can be arranged on the substrate of dielectric, magnetizing mediums, electromagnetic medium material or in the coating layer.

4. a kind of Novel GPS antenna according to claim 3 is characterized in that: described substrate or coating layer are low-temperature co-burning ceramic material (LTCC).