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Radio frequency power single pole double throw switch circuit

A single-pole double-throw switch, radio frequency power technology, applied in circuits, electronic switches, electrical components, etc., can solve problems such as unachievable performance, and achieve the effect of ensuring normal operation, meeting high-power working conditions, and improving application convenience.

Inactive Publication Date: 2018-05-29
海宁海微电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the research and development of some new communication systems, it is hoped that the power switch can handle power greater than 10W, which cannot be achieved by the traditional gallium arsenide (GaAs) PHEMT switch monolithic performance

Method used

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  • Radio frequency power single pole double throw switch circuit
  • Radio frequency power single pole double throw switch circuit
  • Radio frequency power single pole double throw switch circuit

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0020] According to an embodiment of the present invention, a radio frequency power SPDT switch circuit is provided.

[0021] like Figure 1-3As shown, a radio frequency power SPDT switch circuit according to an embodiment of the present invention includes a power amplifier circuit 2, a filter circuit 3, a voltage stabilizing circuit 4 and a SPDT switch circuit 5, and the power amplifier circuit 2 and the The filter circuit 3 is connected, the filter circuit 3 is connected with the voltage s...

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Abstract

The invention discloses a radio frequency power single pole double throw switch circuit, comprising a power amplifier circuit, a filter circuit, a voltage stabilizing circuit and a single pole doublethrow switch circuit. The power amplifier circuit is connected with the filter circuit. The filter circuit is connected with the voltage stabilizing circuit. The voltage stabilizing circuit is connected with the single pole double throw switch circuit. The power amplifier circuit comprises IN, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7,a capacitor C1, a triode Q1, a triode Q2, an amplifier A1, an amplifier A2 and a power supply. Compared with a traditional single pole double throw switch circuit, the circuit has the beneficial effects that a high power working condition of a communication system is effectively satisfied, the normal work of the system circuit is effectively ensured, and the application convenience of the circuitin the mobile communication system is effectively improved.

Description

technical field [0001] The invention relates to the technical field of microwave monolithic integrated circuits, in particular to a radio frequency power single-pole double-throw switch circuit. Background technique [0002] In DC-2000MHz microwave systems, especially in mobile communication systems, a power switch SW is usually required between the power amplifier PA to the antenna ANT and the low noise amplifier LNA to the antenna to control the switching of transceivers. In the current microwave communication system, there are usually two forms of power switches. One is to use discrete silicon (si) material PIN diodes, which are completed in the form of hybrid circuits. It is characterized by large volume, narrow operating frequency band, and control circuit. complex. The other is to use gallium arsenide (GaAs) pseudo-high electron mobility transistor (PHEMT) monolithic switch. The PHEMT switch has the characteristics of small size, wide application frequency range, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/60
CPCH03K17/602H03K17/603
Inventor 杜浩华
Owner 海宁海微电子科技有限公司
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