Accession Number:

ADP011766

Title:

Tuneable Interferometric Bandpass and Bandstop Filters for Terahertz Applications

Descriptive Note:

Corporate Author:

CONCORDIA UNIV MONTREAL (QUEBEC) DEPT OF ELECTRICAL AND COMPUTER ENGINEERING

Personal Author(s):

Report Date:

2000-09-29

Pagination or Media Count:

4.0

Abstract:

Numerically simulated performance of a new type of tuneable bandstop and bandpass filter is presented. The filters use 2x2 couplers loaded by discontinuity-assisted ring resonators DARR. The bandstop filter consists of one or several cascaded DARRs. Two bandstop filters separated by a cavity make up the bandpass filter. Tuning is achieved by varying the geometrical or material parameters of the ring resonators or the cavity. Alternatively, when the device is used as a sensor, environmental conditions are monitored by their detuning effect. Selectivity and tuning range are controlled by the coupling coefficient of the couplers, by the circumference of the rings and by the reflection coefficient of the discontinuities. The effects of coupler and waveguide loss have also been investigated.

Subject Categories:

  • Electrical and Electronic Equipment
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE