Innertron, Inc.

Moon Bong Ko

Hak Rae Cho

Soo Duk Seo

Jun Ho Kang

Jong Woo Ha

Jae Hyun Ju

Duk Seo Soo

A modular PIM analyzer includes: a first signal amplification module provided with a first signal generator for generating a first frequency signal under control of a first MCU, and a first power amplifier for generating a first amplified frequency signal through the amplification of the first frequency signal under control of a first ALC circuit; a second signal amplification module provided with a second signal generator for generating a second frequency signal under control of a second MCU, and a second power amplifier for generating a second amplified frequency signal through the amplification of the second frequency signal under control of a second ALC circuit; and a triplexer module for extracting a test frequency signal using the first amplified frequency signal and the second amplified frequency signal, transmitting the test frequency signal to a device under test, and receiving a PIM signal being reflected from the device under test.

Modular PIM analyzer and method using the same

A duplexer includes a plurality of first resonators disposed along the transmission path of the transmitting signal; a plurality of second resonators disposed along the transmission path of the receiving signal; and a combining panel having an overlapped area between one of the plurality of first resonators which is disposed closest to an antenna and one of the plurality of second resonators which is disposed closest to the antenna, wherein each of said first resonators and said second resonators includes: a body comprised of dielectric material, and formed with a through hole penetrating unidirectionally, and a conducting layer formed on the cross-section of at least one side of the cross-sections of the both sides along the lengthwise direction of said body, and the surface of the wall of said through hole.

Duplexer

A multiplexer including a housing including an antenna connector coupled to an antenna and a plurality of input and output connectors configured to receive or output a signal transmitted or received via the antenna according to a predetermined frequency band; a plurality of band pass filter units included in the housing and configured to pass a signal of a predetermined frequency band between the antenna connector and the plurality of input and output connectors; and a coupling unit including a plurality of feeding units to couple the antenna connector and the plurality of band pass filter units with one another.

Multiplexer

A resonance device including a plurality of resonators arranged in a state of being spaced apart from each other; and a notch resonator formed above the plurality of resonators, wherein the notch resonator includes: a transverse layer having an area overlapping with at least three resonators of the plurality of resonators; and a plurality of short-ended layers connecting the transverse layer to a first ground surface.

Resonance device and filter including the same

A resonance device including a plurality of signal input/output ports, further including: a plurality of resonators arranged in a state of being spaced apart from each other; and a notch resonator formed at a side of the plurality of resonators, wherein the notch resonator includes: a laminated part having a laminated structure formed by layering a plurality of conductive layers; a first transmitting layer connected to one of the plurality of conductive layers; and a bridge connected between the first transmitting layer and one of the plurality of resonators, wherein one of the plurality of signal input/output ports is connected to the bridge.

Growing community of inventors

Incheon, South Korea

Moon Bong Ko