By Topic

Novel tunable high Q filter design for branching networks with extreme narrowband channels at mm-wave frequencies

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
U. Rosenberg ; Marconi Commun. GmbH, Microwave Technol. Centre, Backnang, Germany ; M. Knipp

The paper presents a novel mm-wave filter design for extreme narrow passbands (0.1% bandwidth) which can be tuned to arbitrary center frequency allocations in a 900MHz band. The established design is based on a special side-wall configuration of TE113 dual mode cavities. Several details have been invented to overcome the structural constraints and to maintain the required high unloaded Q factor at all tuning allocations. Validation of the concept is provided by the measured results of a 5th order Chebyshev filter design at 26GHz with an equiripple passband of 32MHz (return loss 20dB) and a tuning range of 900MHz. These filter types are applied in the channel branching networks of short haul radio equipment for the combination of an arbitrary number of channels with a center frequency distance of 56MHz.

Published in:

2005 European Microwave Conference  (Volume:2 )

Date of Conference:

4-6 Oct. 2005