Modular circuit arrangement used for attenuation compensation

A circuit device and circuit technology, applied in the direction of electrical components, transmission systems, etc., can solve the problem of expensive circuit devices, and achieve the effect of cheap structure and simple structure

Active Publication Date: 2009-11-25
无线电厂达本多夫有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a circuit arrangement is very expensive, especially considering the presence of several necessary filter units, duplexers, duplexers, etc.

Method used

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  • Modular circuit arrangement used for attenuation compensation
  • Modular circuit arrangement used for attenuation compensation
  • Modular circuit arrangement used for attenuation compensation

Examples

Experimental program
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Effect test

Embodiment Construction

[0033] figure 1 A block circuit diagram of a possible embodiment of the circuit arrangement according to the invention is shown. The circuit arrangement is constructed modularly and is therefore divided into several parts. The circuit device is mainly composed of a front-end module 1 arranged at the antenna end a, a rear-end module 1 arranged at the equipment end b, a frequency and / or frequency combined between the front-end module 1 and the rear-end module 2 and combined in the front-end module 37 Or band-pass filter 24,25,26, detector circuit 35, have power amplifier module 40 with power amplifier 17,18,19 and the attenuation assembly 49,50,51 that connects front, other are arranged in front-end module 1 and rear Between the end modules 2 and at the output end and input end of the power amplifier module 40 are composed of filters such as harmonic filters 43 , 44 , 45 , 46 , 47 , and 48 . According to the present invention, the front-end module 1 is composed of high-frequen...

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PUM

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Abstract

The invention relates to a multiband, multipart circuit arrangement for compensating the attenuation of HF radio signals in the signal paths between a transceiver (g) and an external antenna (a). Saidcircuit arrangement consists of a universal front end module (1) with HF switching means (29, 30) on the antenna side (a) for switching the signal paths on the antenna side, a broadband receive amplifier (31) and at least one splitter that distributes the output signal of the receive amplifier to a plurality of outputs of the front end module, and a universal back end module (2) comprising HF switching means (29', 30') on the device side (g) for switching the signal paths on the device side, which module is coupled to the transceiver via the detector circuit, at least one receive amplifier (32) and at least one combiner which combines the input signals of a plurality of inputs of the back end module. The front end module and the back end module can be combined with different power amplifiers (40) and different frequency and/or bandpass filters (37) and can be differently connected.

Description

technical field [0001] The invention relates to a multi-band, at least partially modular, and thus multi-part circuit arrangement for compensation of attenuation between a transmitting and receiving device and an external antenna used together with the transmitting and receiving device The input and output high-frequency radio signals in the signal path are subject to such attenuation. The invention preferably, but not exclusively, relates to a circuit arrangement arranged at an external antenna for operating a mobile transmitting and receiving device, in particular for operating a mobile radio device. Background technique [0002] In vehicles, for example, mobile radio devices for avoiding electromagnetic fields in the passenger compartment when connected to an intercom unit via a high-frequency cable (antenna connection cable) and possibly via electromagnetic coupling or capacitive or inductive couplers Antenna connection provided on the outside of the car. In this case,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/00H04B1/40H04B1/38
CPCH04B1/0057H04B1/3822H04B1/006H04B1/406
Inventor H·纳斯特R·杰柯比F·黑德尔
Owner 无线电厂达本多夫有限公司
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