A capacitively loaded half-wavelength tapped-stub resonator

Journal Article

This paper examines a new resonator which is created by adding capacitive loading to a half-wavelength tappedstub resonator. This capacitively loaded resonator has the property that both the Q and the resonant frequency can be set independently. This property is important because it allows this resonator to be used as either a tracking filter which maintains a constant bandwidth or as a filter which can vary its Q while maintaining a fixed resonant frequency. In this paper, equations are derived for choosing capacitance values that yield a desired resonant frequency and value of Q. Examples of using this resonator as both a fixed-frequency variable-Q filter and a constant-bandwidth tracking filter are provided. Theoretical results are verified by measurements. © 1997 IEEE.

Full Text

Duke Authors

Cited Authors

  • Drozd, JM; Joines, WT

Published Date

  • 1997

Published In

Volume / Issue

  • 45 / 7

Start / End Page

  • 1100 - 1104

International Standard Serial Number (ISSN)

  • 0018-9480

Digital Object Identifier (DOI)

  • 10.1109/22.598447