Lumped element directional coupler having asymmetrical structure
AssigneeUniversity-Industry Cooperation Group of Kyung Hee University
InventorSang Woong YOON
Life of this patent
Estimating the term…
Abstract
A lumped element directional coupler having an asymmetrical structure. The lumped element directional coupler can be integrated while being compact by using lumped elements, instead of transmission lines, have broadband characteristics through the lumped elements being asymmetrically arranged, and further increase bandwidth by additionally providing a negative capacitor element or, more particularly, a negative capacitor element having loss.
Claims7
A directional coupler comprising an input terminal, an output terminal, a coupled terminal, and an isolated terminal,
- wherein a magnitude of impedance between the input terminal and the output terminal is different from a magnitude of impedance between the coupled terminal and the isolated terminal.
The directional coupler according to claim 2, wherein a magnitude of impedance between the input terminal and the coupled terminal is same as a magnitude of impedance between the coupled terminal and the isolated terminal.
Dependencies are inferred from the claim text.