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Diplexer and transceiver of wireless communication device

A technology of duplexers and transceivers, which is applied in the field of duplexers and transceivers, can solve problems such as being easily damaged, and achieve the effect of improving the protection ability of electrostatic discharge

Active Publication Date: 2014-08-27
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the wafer realized by the IPD process does not have any active components, the input / output pins of the wafer may be easily damaged due to electrostatic discharge during the manufacture, packaging or testing of integrated circuits

Method used

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  • Diplexer and transceiver of wireless communication device
  • Diplexer and transceiver of wireless communication device
  • Diplexer and transceiver of wireless communication device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Please refer to figure 1 , which is a schematic diagram of a transceiver 10 according to an embodiment of the present invention. The transceiver 10 is used in a wireless communication device (such as a wireless router, a wireless network access device, a wireless network card, and a wireless communication device) for coupling a radio frequency (RF) signal RFS1 corresponding to a carrier frequency CF1 and corresponding to a A radio frequency signal RFS2 at a carrier frequency CF2. Such as figure 1 As shown, the transceiver 10 includes signal processing units 100 , 102 and a duplexer 104 . The signal processing units 100 and 102 are respectively coupled to the ports POR1 and POR2 of the duplexer 104 for performing related signal processing (eg, demodulation and modulation) of the radio frequency signals RFS1 and RFS2 . The duplexer 104 includes ports POR1-POR3 and impedance units IMU1, IMU2. The duplexer 104 is used for sending the radio frequency signals RFS1, RFS2 t...

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PUM

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Abstract

A diplexer, for coupling a first radio frequency (RF) signal corresponding to a first carrier frequency and a second RF signal corresponding to a second carrier frequency is disclosed. The diplexer includes a first port arranged to couple the first RF signal; a second port arranged to couple the second RF signal; a third port capable of connecting an antenna; a first impedance unit coupled to the first port and the third port; and a second impedance unit coupled to the second port and the third port; wherein the first port, the second port and the third port are coupled to a direct current (DC) ground; wherein the first impedance unit is arranged to provide an first open-circuit impedance against the second RF signal, and the second impedance unit is arranged to provide a second open-circuit impedance against the first RF signal.

Description

【Technical field】 [0001] The present invention relates to a duplexer and a transceiver, in particular to a duplexer and a transceiver whose port is coupled to a DC ground for enhancing electrostatic discharge (electro-static discharge, ESD) protection. 【Background technique】 [0002] As technology advances, the process of integrated circuits (ICs) becomes advanced, and various electronic circuits can be integrated / formed on a single chip. When the electronic circuits of an integrated circuit operate according to two or more frequencies, a transmit / receive (T / R) switch or a diplexer is required to separate signals with different frequencies. When a duplexer is employed, the manufacturing cost of the duplexer can be reduced if the duplexer is implemented in a separate die through an integrated passive device (IPD) process. Since the wafer implemented by the IPD process does not have any active components, the input / output pins of the wafer may be easily damaged due to electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40H04L5/14
CPCH04L5/06H04B1/005H04B1/48H03H7/463H03H7/09
Inventor 李志虹蔡明达许瑞麟
Owner MEDIATEK INC