CN203013924U - 双频微带天线 - Google Patents

双频微带天线 Download PDF

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Publication number
CN203013924U
CN203013924U CN 201220478897 CN201220478897U CN203013924U CN 203013924 U CN203013924 U CN 203013924U CN 201220478897 CN201220478897 CN 201220478897 CN 201220478897 U CN201220478897 U CN 201220478897U CN 203013924 U CN203013924 U CN 203013924U
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CN 201220478897
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严盛喜
韦玉华
王猛
王峰
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JIANGSU JIAJIA ELECTRONIC CO Ltd
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JIANGSU JIAJIA ELECTRONIC CO Ltd
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Abstract

本实用新型涉及一种双频微带天线。包括上下设置的双层贴片，上层贴片和下层贴片上分别设置有馈针，所述上层馈针和下层馈针平行设置。本实用新型通过上下层馈针位置，有效改善了双频天线的隔离度，而且天线结构紧凑，便于生产加工。

Description

双频微带天线
所属技术领域
本实用新型涉及一种双频双圆极化微带天线。 
背景技术
随着中国北斗导航技术的发展，可同时接收多个频段信号的卫星接收天线的设计得到了广泛重视。微带天线以其尺寸小、成本低、易实现圆极化等特点在卫星通信终端上得到了广泛的应用，微带天线的双频化方法很多，根据不同形状的微带天线，实现双频的方式也不同。如通过加载或者开槽的方法改变贴片各种自然模的场分布，进而使谐振频率受到干扰，最终实现双频或者多频工作，另一种是使用双层贴片。通常双层贴片天线上下层馈针成90度分布，两个频率之间的隔离度相对较差。 
实用新型内容
本实用新型针对上述缺陷，目的在于提供一种能实现良好双频或者多频工作的双频微带天线。 
为此本实用新型采用的技术方案是：本实用新型包括上下设置的双层贴片，上层贴片和下层贴片上分别设置有馈针，所述上层馈针和下层馈针平行设置。 
所述上层贴片和下层贴片同轴设置。 
所述上层馈针和下层馈针偏离中心点设置，两者设置在轴线上。 
本实用新型的优点：本实用新型通过上下层馈针位置，有效改善了双频天线的隔离度，而且天线结构紧凑，便于生产加工。 
附图说明
图1为本实用新型的结构示意图。 
图2为图1的俯视图。 
图3为图1的仰视图。 
图中1为上层贴片、2为下层贴片、3为上层馈针、4为下层馈针。 
具体实施方式
本实用新型包括上下设置的双层贴片，上层贴片1和下层贴片2上分别设置有馈针，所述上层馈针3和下层馈针4平行设置。 
所述上层贴片1和下层贴片2同轴设置，上层馈针3和下层馈针4偏离中心点设置，两者设置在轴线上。 
本实用新型采用了一种可同时工作在GPS的L1(1.575 GHz)频段和北斗 S(2.492 GHz)频段的双频圆极化微带天线，天线通过探针馈电无需任何移相网络和功率分配器就可以实现圆极化辐射，双层正方形切角的微带贴片实现圆极化，通过调整上层馈针3、下层馈针4的位置，有效改善了双频天线的隔离度，而且天线结构紧凑，便于生产加工。 

Claims (1)

1.双频微带天线，包括上下设置的双层贴片，上层贴片和下层贴片上分别设置有馈针，所述上层馈针和下层馈针平行设置，其特征在于，所述上层贴片和下层贴片同轴设置；所述上层馈针和下层馈针偏离中心点设置，两者设置在轴线上。
CN 201220478897 2012-09-19 2012-09-19 双频微带天线 Expired - Fee Related CN203013924U (zh)

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CN 201220478897 CN203013924U (zh) 2012-09-19 2012-09-19 双频微带天线

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CN 201220478897 CN203013924U (zh) 2012-09-19 2012-09-19 双频微带天线

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104466380A (zh) * 2014-12-19 2015-03-25 南京理工大学 平面双频双圆极化阵列天线
CN104701612A (zh) * 2015-03-03 2015-06-10 河南师范大学 一种用于低轨卫星通信的微带天线

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104466380A (zh) * 2014-12-19 2015-03-25 南京理工大学 平面双频双圆极化阵列天线
CN104466380B (zh) * 2014-12-19 2017-06-27 南京理工大学 平面双频双圆极化阵列天线
CN104701612A (zh) * 2015-03-03 2015-06-10 河南师范大学 一种用于低轨卫星通信的微带天线

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CU01 Correction of utility model patent

Correction item: Patentee

Correct: Jiangsu Jiangjia Electronics Co., Ltd.

False: Jiangsu Jiajia Electronic Co., Ltd.

Number: 25

Page: The title page

Volume: 29

CU03 Correction of utility model patent gazette

Correction item: Applicant

Correct: Jiangsu Jiangjia Electronics Co., Ltd.

False: Jiangsu Jiajia Electronic Co., Ltd.

Number: 25

Volume: 29

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Free format text: CORRECT: APPLICANT; FROM: JIANGSU JIAJIA ELECTRONIC CO., LTD. TO: JIANGSU JIANGJIA ELECTRONIC CO., LTD.

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130619

Termination date: 20160919