CN204045726U

CN204045726U - Combined antenna

Info

Publication number: CN204045726U
Application number: CN201420382361.2U
Authority: CN
Inventors: 王春华; 汤永星
Original assignee: Harxon Corp
Current assignee: Harxon Corp
Priority date: 2014-07-10
Filing date: 2014-07-10
Publication date: 2014-12-24
Anticipated expiration: 2024-07-10

Abstract

The utility model discloses a kind of combined antenna, top to bottm comprise the first radiation fin of center superposition, the first ceramic dielectric substrate, the second radiation fin and the second ceramic dielectric substrate successively, the non-fillet side of the second ceramic dielectric substrate is provided with silver coating.The utility model adds the low elevation gain of antenna, thus reduces the size of the antenna of identical low elevation gain.

Description

Combined antenna

Technical field

The utility model relates to field of antenna, particularly relates to a kind of combined antenna for Beidou satellite navigation system.

Background technology

Beidou satellite navigation system be China implementing independent development capability, independent operating GPS (Global Position System), in order to promote satellite navigation national economy society every profession and trade extensive use.

The low elevation gain of Beidou satellite navigation system to antenna has requirement, if low elevation gain is lower, antenna receives the ability of low elevation signals will be more weak; Existing low elevation gain solution can cause antenna volume and then to become large.

Utility model content

The purpose of this utility model is, provides a kind of combined antenna, in order to improve the low elevation gain of antenna, thus improves the size of identical low elevation gain antenna.

The utility model discloses a kind of combined antenna, above-mentioned antenna comprises the first radiation fin of center superposition, the first ceramic dielectric substrate, the second radiation fin and the second ceramic dielectric substrate from top to bottom successively, and the non-fillet side of above-mentioned second ceramic dielectric substrate is provided with silver coating.

Preferably, above-mentioned second ceramic dielectric substrate is B3 ceramic dielectric substrate.

The utility model, by increasing the mode of silver coating at the ceramic dielectric substrate side of combined antenna, adds the low elevation gain of antenna, thus reduces the size of the antenna of identical low elevation gain.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a part of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:

Fig. 1 is the schematic diagram of the preferred embodiment of combined antenna described in the utility model;

Fig. 2 is the low elevation gain schematic diagram of the existing combined antenna of same volume;

Fig. 3 is the low elevation gain schematic diagram of combined antenna shown in Fig. 1.

Embodiment

In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearly, understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.

As shown in Figure 1, be the schematic diagram of preferred embodiment of combined antenna described in the utility model; Comprise the first radiation fin 10, first ceramic dielectric substrate 20, second radiation fin 30, second ceramic dielectric substrate 40 of center superposition from top to bottom successively; 401 is silver coating; 402 is fillet, silver coating 401 is brushed on the non-fillet side of the second ceramic dielectric substrate 40, namely the oblique line filling part in figure, due to visual angle reason, illustrate only the silver coating 401 on 2 sides in Fig. 1, in fact 4 of the second ceramic dielectric substrate 40 non-fillet sides have silver coating 401; Second ceramic dielectric substrate 40 is B3 ceramic dielectric substrate.

As shown in Figure 2, be the low elevation gain schematic diagram of the existing combined antenna of same volume, upper as can be seen from figure, its minimum low elevation gain is-0.34dB;

As shown in Figure 3, be the low elevation gain schematic diagram of combined antenna shown in Fig. 1, upper as can be seen from figure, minimum low elevation gain is-0.76dB.

Above-mentioned explanation illustrate and describes preferred embodiment of the present utility model, but as previously mentioned, be to be understood that the utility model is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in utility model contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from spirit and scope of the present utility model, then all should in the protection range of the utility model claims.

Claims

1. a combined antenna, described antenna comprises the first radiation fin of center superposition, the first ceramic dielectric substrate, the second radiation fin and the second ceramic dielectric substrate from top to bottom successively, it is characterized in that, the non-fillet side of described second ceramic dielectric substrate is provided with silver coating.

2. combined antenna as claimed in claim 1, it is characterized in that, described second ceramic dielectric substrate is B3 ceramic dielectric substrate.