CN112086735B - 内部集成放大电路的微带功分电路 - Google Patents

内部集成放大电路的微带功分电路 Download PDF

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CN112086735B
CN112086735B CN202010947879.6A CN202010947879A CN112086735B CN 112086735 B CN112086735 B CN 112086735B CN 202010947879 A CN202010947879 A CN 202010947879A CN 112086735 B CN112086735 B CN 112086735B
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circuit
microstrip
radio frequency
microstrip line
power division
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CN112086735A (zh
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傅胜明
李文博
陈高波
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Zhejiang Jinyichang Technology Co ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2283Supports; Mounting means by structural association with other equipment or articles mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40Circuits
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Microwave Amplifiers (AREA)

Abstract

本发明描述的内部集成放大电路的微带功分电路,包括介质基片、射频电路、天线和微带功分电路,所述的介质基片的一个表面设有天线,另一个表面设有射频电路,所述的介质基片设有射频电路的表面还设置微带功分电路,所述的微带功分电路成四边形将射频电路包围在内。这种结构的特点是利用微带功分电路中的微带线直接作为输入输出端,同时将射频电路设置在功分电路的包围之内,从而压缩整个天线的体积。

Description

内部集成放大电路的微带功分电路
技术领域
本发明涉及微带射频技术领域,特别是一种内部集成放大电路的微带功分电路。
背景技术
功分电路常用于卫星导航定位天线。目前,市面上的卫星导航定位天线产品的射频电路为了解决体积问题,常采用电桥、合路器等元器件替代功分电路。但在面对天线整体输入输出端有2个或多个等分或不等分输入输出需求时,常采用直接在单输出端口接入功分器等器件进行多路等分或不等分输入输出,导致产品成本明显增加且需要额外的配件和占用更多额外空间。
发明内容
为解决上述问题,本发明提供了一种能有效减少配置额外功分器等期间,降低成本的内部集成放大电路的微带功分电路。
为了达到上述目的,本发明所设计的内部集成放大电路的微带功分电路,包括介质基片、射频电路、天线和微带功分电路,所述的介质基片的一个表面设有天线,另一个表面设有射频电路,所述的介质基片设有射频电路的表面还设置微带功分电路,所述的微带功分电路成四边形将射频电路包围在内。这种结构的特点是利用微带功分电路中的微带线直接作为输入输出端,同时将射频电路设置在功分电路的包围之内,从而压缩整个天线的体积。
进一步的方案是,所述的微带功分电路包括50Ohm特性阻抗微带线和70.7Ohm微带线,70.7Ohm微带线组成包围体,一条50Ohm特性阻抗微带线连接70.7Ohm微带线与射频电路的输入输出端,同时另有两条50Ohm特性阻抗微带线分别连接70.7Ohm微带线以形成功分电路的输入输出端。通过设置两种不同的微带线,实现不同的功能,从而进一步简化天线结构设计方案。同时,还能根据设计需要设计包围状结构的形状,从而适应各种不同形状的射频电路。
进一步的方案是,所述的70.7Ohm微带线是70.7Ohm的四分之一波长微带线,并且分为左右对称设置的“匚”结构;两条70.7Ohm的四分之一波长微带线的起始端通过同一条50Ohm特性阻抗微带线与射频电路的输入输出端连接,两条70.7Ohm的四分之一波长微带线末端各连接一条50Ohm特性阻抗微带线,分别作为功分电路的输入和输出端,且作为功分电路输入输出端的50Ohm特性阻抗微带线之间设有隔离电阻。通过精确设计70.7Ohm微带线的形状以及和50Ohm特性阻抗微带线的连接位置,进一步控制功分电路的结构,从而保证其使用效果,设计时可以根据需要控制70Ohm微带线的长度,从而适应各种不同大小的射频电路。
更进一步的方案是,所述的射频电路上设有屏蔽罩;所述的微带功分电路中微带线的转向处的外侧均做切角处理,通过切角处理能有效降低功分电路的损耗。
与现有技术相比,本发明设计的内部集成放大电路的微带功分电路,通过设计包围状的微带线,将整个功分电路外置到射频电路之外,从而避免了功分电路和射频电路重复占用介质基片空间的问题,在设计天线时,还可以根据射频电路的形状,进一步改变70.7Ohm微带线的形状,设计成诸如圆形椭圆形等对称图形,进而配合其形状射频电路或天线芯片外形的需要。同时妥善的设计了输入输出端,可以根据需要设置不同长度的嗯50Ohm特性阻抗微带线,从而达到等分或不等分输入输出的效果。
附图说明
图1 是实施例1立体图。
图2 是实施例1俯视图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述。
实施例1
如图1所示,本实施例描述内部集成放大电路的微带功分电路,包括介质基片1,介质基片1上设有天线的射频电路2及其屏蔽罩3,以及微带功分电路4,参照图2,射频电路2的输入输出点5与一条50Ohm特性阻抗微带线61的一端相连,另一端与左70.7Ohm四分之一波长微带线71和右70.7Ohm四分之一波长微带线72相连的起始端连接,左70.7Ohm四分之一波长微带线71与左50Ohm特性阻抗微带线62相连,右70.7Ohm四分之一波长微带线72与右50Ohm特性阻抗微带线63相连,作为功分电路的输入输出端。左50Ohm特性阻抗微带线62与右50Ohm特性阻抗微带线63之间接有隔离电阻8。

Claims (2)

1. 一种内部集成放大电路的微带功分电路,包括介质基片、射频电路、天线和微带功分电路,所述的介质基片的一个表面设有天线,另一个表面设有射频电路,其特征是所述的介质基片设有射频电路的表面还设置微带功分电路,所述的微带功分电路成包围状将射频电路包围在内;所述的微带功分电路包括500hm 特性阻抗微带线和70.70hm 微带线,70.70hm 微带线组成包围体,一条500hm 特性阻抗微带线连接70.70hm 微带线与射频电路的输入输出端;所述的70.70hm 微带线是70.70hm 的四分之一波长微带线,并且分为左右对称设置的“匚”结构;两条70.70hm 的四分之一波长微带线的起始端通过同一条500hm 特性阻抗微带线与射频电路的输入输出端连接,两条70.70hm 的四分之一波长微带线末端各连接一条500hm 特性阻抗微带线,分别作为功分电路的输入和输出端,且作为功分电路输入输出端的两条500hm 特性阻抗微带线之间设有隔离电阻。
2.根据权利要求1所述的内部集成放大电路的微带功分电路,其特征是所述的射频电路上设有屏蔽罩;所述的微带功分电路中微带线的转向处的外侧均做切角处理。
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