Abstract: To provide a microwave/milliwave band high-frequency pulse signal generating device that enables realization of structural simplification, high performance, compact integration, easy design, low power consumption, and low cost.
Type:
Application
Filed:
October 6, 2009
Publication date:
January 5, 2012
Applicants:
COMMUNICATIONS RESEARCH LABORATORY, INC., NATIONAL INS. OF INFO. AND COMMUNICATIONS TECH.
Abstract: A microwave/millimeter wave sensor apparatus including a planar radiation type oscillator substrate having an inner-layer GND interposed between a front surface side dielectric substrate and a rear surface side dielectric substrate and a pair of conductor patches in an axis-symmetric manner on the side of the front surface layer. A gate and drain of a microwave transistor are respectively connected to the conductor patches to supply power to the gate and the drain of the microwave transistor through a gate-side RF choke circuit and a drain-side RF choke circuit. An impedance line satisfying an oscillation condition is connected to a source and a transmit RF signal in an RF zone as a planar radiation type oscillator is transmitted and a receive RF signal as reflected waves is received from a measured object, thus obtaining an IF signal as the sensing information through homodyne mixing.
Type:
Application
Filed:
March 31, 2008
Publication date:
May 13, 2010
Applicant:
NATIONAL INS. OF INFO. AND COMMUNICATIONS TECH.
Abstract: A wireless communication device having extremely simple constitution is used, and a low-cost and low power consumption wireless network system with high-quality signals is provided. The wireless network system comprises a plurality of wireless communication devices (101) each comprising a radiating oscillator (1) configured to integrate a transistor into a microwave oscillating resonator to generate a negative resistance and to commonly use a function of an antenna (11), an intermediate frequency signal generating section (4) and a receiving signal detecting section (7).
Type:
Application
Filed:
March 30, 2007
Publication date:
October 8, 2009
Applicant:
NATIONAL INS. INFO. AND COMMUNICATIONS TECH.