SIGNAL PROCESSING CIRCUIT, SIGNAL PROCESSING MODULE AND COMMUNICATION DEVICE

WIPO Patent Application WO/2016/158314

A1

The technology of the present invention relates to a signal processing circuit, a signal processing module and a communication device which enable the realization of a desired coupler characteristic using a microstrip line of an arbitrary line length. The signal processing circuit of one aspect of the technology of the present invention includes: a directional coupler having a main line that serves as a transmission line of an RF signal and a sub-line that, together with the main line, forms the coupled line; and a termination part comprising a plurality of elements that can be connected between a ground and a first port, which is one of the ports on either end of the sub-line. The signal processing circuit switches the element of the termination part connected to the first port, in accordance with the frequency of the RF signal, so that the phase of the return signal of a signal, which was input to the termination part via the first port as a coupled signal corresponding to the RF signal, will be the reverse phase of the phase of an isolation signal supplied to the second port connected to an output port of the coupled signal. The technology of the present invention can be applied to wireless communication devices.

JP7424492	Wiring structure
JPH10247803	PASSIVE ELEMENT
JP6662349	Directional couplers, high frequency front end modules, and communication equipment

NOGUCHI KENJI (JP)
KOHAMA KAZUMASA (JP)

PCT/JP2016/057739

October 06, 2016

March 11, 2016

Click for automatic bibliography generation  

SONY SEMICONDUCTOR SOLUTIONS CORP (JP)

H01P5/18

US5053733A	1991-10-01
US20110057746A1	2011-03-10
US20140266499A1	2014-09-18

NISHIKAWA Takashi et al. (JP)
Nishikawa 孝 (JP)

View/Download PDF      PDF Help

Previous Patent: INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD THEREOF

Next Patent: IMAGING ELEMENT, IMAGING METHOD, AND ELECTRONIC DEVICE