CN202737109U - 一种数字电视信号接收天线 - Google Patents

一种数字电视信号接收天线 Download PDF

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Publication number
CN202737109U
CN202737109U CN 201220332693 CN201220332693U CN202737109U CN 202737109 U CN202737109 U CN 202737109U CN 201220332693 CN201220332693 CN 201220332693 CN 201220332693 U CN201220332693 U CN 201220332693U CN 202737109 U CN202737109 U CN 202737109U
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oscillator
antenna
digital television
frequency band
television signal
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童慧智
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Zhejiang Chuangzhan Electronic Technology Co ltd
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Abstract

本实用新型涉及一种数字电视信号接收天线，该天线的偶极振子、频带高端展宽匹配振子安装在振子盒上，振子盒安装在振子支撑杆的一端，振子支撑杆的另一端安装有反射网。采用本实用新型，由于偶极振子和频带高端展宽匹配振子组合成接收振子，使天线在470-860MHz接收频带内的特性阻抗良好地匹配，有效地保证了数字电视信号低损耗、高保真的接收效果。

Description

一种数字电视信号接收天线
技术领域
本实用新型涉及一种数字电视信号接收天线，特别是涉及UHF 470-860MHz频带数字电视信号接收天线。 
背景技术
目前市场上销售的普通八木天线，即UHF470-860MHz频带数字电视信号接收天线，其前面是引向器，后面是反射器，通过引向器引入信号，但这种结构的天线，信号传输过程中反射损耗损失较大，由于射频信号在被接收和传输的过程中相位失真和时间延时失真等因素，影响到数字信号的有效接收。 
发明内容
本实用新型的目的是设计了传输损耗低，射频信号不会失真的一种数字电视信号接收天线。 
本实用新型采取的技术方案是：一种数字电视信号接收天线，包括反射网和振子支撑杆，其特征在于它设有偶极振子、频带高端展宽匹配振子和振子盒，偶极振子、频带高端展宽匹配振子安装在振子盒上，振子盒安装在振子支撑杆的一端，振子支撑杆的另一端安装有反射网。 
采用本实用新型，由于偶极振子和频带高端展宽匹配振子组合成接收振子，使天线在470-860MHz接收频带内的特性阻抗良好地匹配，有效地保证了数字电视信号低损耗、高保真的接收效果。 
附图说明
图1是本实用新型的立体示意图。 
图中序号表示：反射网1、振子支撑杆2、偶极振子3、振子盒4和匹配振子5。 
具体实施方式
下面结合附图对本实用新型作进一步说明。 
参照图1，该数字电视信号接收天线包括反射网1、振子支撑杆2，偶极振子3、频带高端展宽匹配振子5和振子盒4，偶极振子3、频带高端展宽匹 配振子5安装在振子盒4上，振子盒4安装在振子支撑杆2的一端，振子支撑杆2的另一端安装有反射网1。 
通过上述，因偶极振子3和频带高端展宽匹配振子5安装在振子盒4上，结合成接收振子部分，并与反射网1组合成一体，使频带低端展宽匹配，从而使天线在470-860MHz接收频带内的特性阻抗良好地匹配，有效地保证了数字电视信号低损耗、高保真的接收效果。同时，偶极振子3和频带高端展宽匹配振子5之间的间距设计，可以改善数字电视信号接收时的相位失真和时间延时失真，提高数字信号的有效接收。 
据测试结果表明，该天线振子的最佳的接收范围覆盖整个电视信号UHF频段的470MHz～860MHz频率范围，且具有低的射频信号失真传输，体积小，结构简单。 

Claims (1)

1.一种数字电视信号接收天线，包括反射网和振子支撑杆，其特征在于它设有偶极振子、频带高端展宽匹配振子和振子盒，偶极振子、频带高端展宽匹配振子安装在振子盒上，振子盒安装在振子支撑杆的一端，振子支撑杆的另一端安装有反射网。
CN 201220332693 2012-07-04 2012-07-04 一种数字电视信号接收天线 Expired - Lifetime CN202737109U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220332693 CN202737109U (zh) 2012-07-04 2012-07-04 一种数字电视信号接收天线

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220332693 CN202737109U (zh) 2012-07-04 2012-07-04 一种数字电视信号接收天线

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CN202737109U true CN202737109U (zh) 2013-02-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108376837A (zh) * 2017-12-31 2018-08-07 浙江联品电子科技有限公司 一种四偶极子天线

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108376837A (zh) * 2017-12-31 2018-08-07 浙江联品电子科技有限公司 一种四偶极子天线

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Owner name: ZHEJIANG LONGYOU XINXIDI ELECTRONICS CO., LTD.

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Patentee before: Tong Huizhi

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Owner name: ZHEJIANG CHUANGZHAN ELECTRONIC TECHNOLOGY CO., LTD

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Address after: 324400 development zones in Zhejiang province Longyou County South South Road No. 21

Patentee after: ZHEJIANG CHUANGZHAN ELECTRONIC TECHNOLOGY CO.,LTD.

Address before: 324400 development zones in Zhejiang province Longyou County South South Road No. 21

Patentee before: ZHEJIANG LONGYOU XINXIDI ELECTRONICS Co.,Ltd.

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