Resources Contact Us Home

Image Number 10 for United States Patent #8130061.

A filter being small and having a narrowband filter characteristic is achieved using interdigital-coupled resonators. A first resonator and a second resonator are configured using interdigital-coupled quarter-wavelength resonators respectively. In addition, the first resonator and the second resonator are disposed so as to extend along directions intersecting with each other at a predetermined angle .theta.. Thus, coupling between the resonators is reduced compared with, for example, a case that the first resonator and the second resonator are, as a whole, disposed in parallel to each other. The angle .theta., with which the first resonator and the second resonator are disposed respectively, is adjusted, thereby coupling between the resonators may be made into a desired state. Thus, a desired narrowband filter characteristic is obtained.

  Recently Added Patents
Lighting device
Inspecting device, inspecting method, and method for manufacturing optical fiber
Information processing apparatus, protection method and medium storing protection program
Method of establishing a gamma table
Applying effects to a video in-place in a document
Method and apparatus of controlling uplink transmission power
System for dynamic management of customer direction during live interaction
  Randomly Featured Patents
Delivery of opioids through an inhalation route
6-aryl-(methyl - or methylidone)-quinoline derivatives as voltage-gated potassium channel blockers
Method for generating an animated three-dimensional video head
Automated web ranking bid management account system
Zoom lens and image pickup apparatus including the same
Temperature control method and apparatus for use in thermal processing equipment
Multiple destination banners
Driveline apparatus
Light emitting diode lead-frame
Enclosure structure for magnetic disk memory device