Zobrazeno 1 - 10
of 117
pro vyhledávání: '"L.F. Lind"'
Autor:
R.N. Gajaweera, L.F. Lind
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 52:768-772
This paper describes two different approaches for designing cascaded-triplet filters, having generalized Chebyshev characteristics. Both approaches use an orthonormalization procedure (which satisfies the required topology) that leads to a set of non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb0bfdc8ef02fa8563e79b830822d1b1
https://doi.org/10.1109/tmtt.2004.823535
https://doi.org/10.1109/tmtt.2004.823535
Autor:
R.N. Gajaweera, L.F. Lind
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 51:1578-1583
To realize standard microwave filter structures, it is necessary to zero some of the elements in a general even-mode coupling matrix. The zeroing process involves solving a nonlinear set of equations, performed here by using the Newton-Raphson method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b203191ad30c2864f1873552e10ee8bc
https://doi.org/10.1109/tmtt.2003.810141
https://doi.org/10.1109/tmtt.2003.810141
Autor:
L.F. Lind, Philip L. O’Donovan
Publikováno v:
Applied optics. 15(5)
The illumination of a plane beneath the radiating aperture of an inclined multimode optical fiber is calculated. Graphical results are presented that show, for a proximal scanning head made up of fiber triplets composed of a central sensing fiber and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45ef72d8e0f8dfbd329c94a467b7c001
https://pubmed.ncbi.nlm.nih.gov/20165169
https://pubmed.ncbi.nlm.nih.gov/20165169
Autor:
R.N. Gajaweera, L.F. Lind
Publikováno v:
2008 IEEE MTT-S International Microwave Workshop Series on Art of Miniaturizing RF and Microwave Passive Components.
An easy to follow general procedure is given here to synthesize a coupling matrix for a physically asymmetric or/and asynchronously tuned network exhibiting the generalized Chebyshev frequency characteristics. In this procedure we show that a physica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc954a29cfb6b46e7732fd75d51c3529
https://doi.org/10.1109/imws.2008.4782266
https://doi.org/10.1109/imws.2008.4782266
Autor:
L.F. Lind, R.N. Gajaweera
Publikováno v:
IEEE MTT-S International Microwave Symposium Digest, 2003.
Each triplet has the property of realizing a single real frequency transmission zero. Asymmetric filter responses can be realized by a cascade of triplet sections. This paper describes a Newton-Raphson method for rapid solution of the equations, whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f48d749c76d2b4b519661b4dfefa6f4b
https://doi.org/10.1109/mwsym.2003.1210381
https://doi.org/10.1109/mwsym.2003.1210381
Publikováno v:
1988., IEEE International Symposium on Circuits and Systems.
A technique is proposed which allows accurate discrimination between two FSK keying tones. The technique is used to develop a digital discriminator for the 1200 baud signal generated by CCITT V23 type modems. Simulation of the proposed system has sho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f5e76c125e88ae86c38fc61177664f1
https://doi.org/10.1109/iscas.1988.14882
https://doi.org/10.1109/iscas.1988.14882
Publikováno v:
1988., IEEE International Symposium on Circuits and Systems.
An iterative technique is presented for the factorization (splitting) of a real-coefficient polynomial into two lower-degree polynomials, one being the complex conjugate of the other. The algorithm is simple and suitable for programming, and monotoni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4676a6a66d673f4145a3adfc5e7317f5
https://doi.org/10.1109/iscas.1988.14886
https://doi.org/10.1109/iscas.1988.14886
Autor:
R.N. Gajaweera, L.F. Lind
Publikováno v:
Electronics Letters. 42:1101
The general even-mode coupling matrix, which contains all possible couplings of a microwave filter can be synthesised with well established filter synthesis technique. Presented is a simple but efficient method to annihilate unwanted couplings to rea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b176b5ee55115872cb731fbd959caed2
https://doi.org/10.1049/el:20062329
https://doi.org/10.1049/el:20062329
Publikováno v:
Electronics Letters. 31:859-860
The authors show how the usual piecewise definition of a raised cosine response can be redefined as a convolution. This redefinition yields equations for raised cosine responses of arbitary bandwidth. Large bandwidth raised cosine filters are useful
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3023d9c1517e3cc1c8b815d0aed59659
https://doi.org/10.1049/el:19950605
https://doi.org/10.1049/el:19950605
Autor:
L.F. Lind
Publikováno v:
Electronics Letters. 32:640
There are many ways to approximate an ideal class 1 partial response filter. Three promising approaches are given. The error of each in the time and frequency domains is presented. The main conclusion is that it is best to use all degrees of freedom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::007e34a875061f0ed4355a63a72b59f2
https://doi.org/10.1049/el:19960417
https://doi.org/10.1049/el:19960417