Results 161 to 170 of about 898,512 (189)

Coupled-line coupler with controllable bandwidth

2016 International Conference On Communication Problem-Solving (ICCP), 2016
A new approach for designing a parallel coupled-line coupler with controllable bandwidth is presented. The proposed circuit consists of one coupled-line section and four open- or short-circuited stubs tapped at the ends of coupled lines. The adjustable range of fractional bandwidth is from 7% to 45% controlled by adjusting the impedance of stubs.
Chih-Chun Chang, Yu-Feng Zheng, Hao-Che Kuo, Kuo-Sheng Chin   +3 more
openaire   +1 more source

COUPLED LINE FILTERS. VOLUME 1

1962
Abstract : The paper describes the method of designing distributed networks consisting chiefly of distributed coupled lines. Coaxial filters are the representative ones of distributed filters. They are of practical use because of their simplicity of construction and design procedures.
Akio Matsumoto, Nobuji Saito
openaire   +1 more source

Dual-plane coupled-line microwave filter

1993 IEEE MTT-S International Microwave Symposium Digest, 2002
The realization of a bandpass elliptic filter which employs quasi-TEM (transverse electromagnetic) resonators at different planes coupled through small apertures is described. Bethe's small-hole diffraction theory is used to predict the aperture couplings.
S.-J. Yao, R.R. Bonetti
openaire   +1 more source

Multisection impedance-transforming coupled-line baluns

IEEE Transactions on Microwave Theory and Techniques, 2003
A new class of multisection impedance-transforming coupled-line baluns is presented in this paper. It is based on the quarter-wavelength coupled-line balun. By cascading several coupled and uncoupled-line sections, broad-band baluns with good amplitude and phase balance can be realized using simple microstrip coupled lines.
null Kian Sen Ang, null Yoke Choy Leong, null Chee How Lee   +2 more
openaire   +1 more source

Dangerous pulse excitation of coupled lines

2006 17th International Zurich Symposium on Electromagnetic Compatibility, 2006
This paper studies a possible failure process for protection from high level pulses of equipment connected to multiconductor lines, dealing with multi-mode propagation on the lines, and the differences in the velocity of the various propagation modes on the lines.
A.M. Zabolotsky, T.R. Gazizov, A.G. Bova, W.A. Radasky   +3 more
openaire   +1 more source

Coupled-Line Directional Couplers for M.I.C.

8th European Microwave Conference, 1978, 1978
Following a general consideration of the concept of directional couplers in an inhomogeneous medium and physically asymmetrical couplers, this paper reviews various new types of MIC couplers carring, sometimes simultaneously, different propagation modes (microstrip, coplanar line, slot 1ine).
openaire   +1 more source

Design of the NSCL Coupling Line

IEEE Transactions on Nuclear Science, 1983
The K500 and K800 cyclotrons at the National Superconducting Cyclotron Laboratory must be joined by a beamline which matches the emittance of the K500 to the acceptance of the K800. This paper describes the optical design of that beamline, with particular emphasis on the conceptual design process.
L. H. Harwood, J. A. Nolen, R. F. Resmini, H. G. Blosser   +3 more
openaire   +1 more source

Analysis of lumped-distributed coupled lines

Proceedings of 40th Midwest Symposium on Circuits and Systems. Dedicated to the Memory of Professor Mac Van Valkenburg, 2002
Couplers are of fundamental importance in many RF signal processing systems. Extensive analysis has been performed to study the effects of adding lumped capacitors and resistors to the conventional microstrip coupler. The values of these lumped components were adjusted to study their effects on circuit performances. the results have yielded some highly
S. Ojha, L. Bedal, G.R. Branner, B.P. Kumar   +3 more
openaire   +1 more source

Compact foldable coupled-line cascade couplers

IEE Proceedings - Microwaves, Antennas and Propagation, 2006
A novel coupled-line coupler structure is proposed based on the asymmetric cascade connection of the coupled lines. The effective size of the proposed coupler can be made smaller than conventional quarter-wavelength couplers. Also, the increased design freedom offered by the proposed structure makes it convenient to adapt its layout to complex circuit ...
M.-J. Park, B. Lee
openaire   +1 more source

Theory of microwave coupled-line networks

Proceedings of the IEEE, 1980
The multiwire line forms the basis of many practical microwave filtering and coupling circuits. It also has considerable importance as a circuit element in formal synthesis procedures. This paper is concerned with a tutorial presentation of the various methods of analysis for such multiwire lines leading to a number of different equivalent circuits ...
openaire   +1 more source