Directional coupler and wireless communication device

A directional coupler including a main line, a sub-line, an input terminal, an output terminal, a coupling terminal and an isolation terminal, wherein the main line includes a first main-line section formed on a first layer, and a second main-line section formed on a second layer; the first and the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	MITAKE, YUKIO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS RESONATORS RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE TRANSMISSION WAVEGUIDES
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Beschreibung
Zusammenfassung:	A directional coupler including a main line, a sub-line, an input terminal, an output terminal, a coupling terminal and an isolation terminal, wherein the main line includes a first main-line section formed on a first layer, and a second main-line section formed on a second layer; the first and the second main-line sections are connected in parallel between the input and the output terminals; the sub-line includes a first sub-line section formed on the first layer, and a second sub-line section formed on the second layer; the first and the second sub-line sections are connected in parallel between the coupling and the isolation terminals; the first main-line section and the first sub-line section are disposed in close proximity to each other to generate electromagnetic coupling; and the second main-line section and the second sub-line section are disposed in close proximity to each other to generate electromagnetic coupling.