Journal ArticleDOI
Explicit formulas for the synthesis of optimum bandpass Butterworth and Chebyshev impedance-matching networks
Wai-Kai Chen,T. Chaisrakeo +1 more
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TLDR
In this article, it is shown that using at most a second-order all-pass function for the equalizer back-end reflection coefficient, a bandpass impedance match is possible if and only if the series inductance of the given load does not exceed a certain critical value.Abstract:
Explicit formulas for computing the optimum design parameters of the bandpass impedance-matching networks having Butterworth and Chebyshev responses of arbitrary order for a class of most practical RLC load are derived It is shown that using at most a second-order all-pass function for the equalizer back-end reflection coefficient, a bandpass impedance match is possible if and only if the series inductance of the given load does not exceed a certain critical value This is in direct contrast to the low-pass situation where we showed earlier that any given RLC load can be matched using at most the rust-order all-pass function The significance of the present results is that we reduce the design of these practical bandpass impedance-matching networks to simple arithmeticread more
Citations
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Journal ArticleDOI
On optimum broad-band matching
H. Carlin,P. Amstutz +1 more
TL;DR: Chebyshev gain functions have been widely employed for tly, matching a complex load to a resistive generator as discussed by the authors, and such transfer functions do result in optimum response when the terminations are purely resistive.
Journal ArticleDOI
Broadband networks
TL;DR: The main drivers for narrowband's transition to broadband are new applications that will soon be available and a slew of new Internet access devices and supporting products that will become available in the next few years.
Book
Broadband RF and Microwave Amplifiers
TL;DR: It is shown how dissipative or lossy gain-compensation-matching circuits can offer an important trade-off between power gain, reflection coefficient, and operating frequency bandwidth.
Patent
Low loss wide band front end for NMR receiver
TL;DR: In this paper, an inductive element of a multipole impedance transforming bandpass network is employed as a pick-up coil for sensing NMR signals, which matches the high input impedance of an NMR receiver preamplifier to the low impedance of the pickup coil.
Journal ArticleDOI
Q-based design method for T network impedance matching
TL;DR: This paper investigates the T network impedance matching analytically and shows that the third harmonic rejection is about 12 dB higher than second harmonic rejection provided that the loaded Q is larger than twice the minimum Q.
References
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Journal ArticleDOI
Theoretical limitations on the broadband matching of arbitrary impedances
TL;DR: In this article, the authors considered the problem of matching an arbitrary load impedance to a pure resistance by means of a reactive network and derived necessary and sufficient conditions for the physical realizability of a function of frequency representing the input reflection coefficient of a matching network terminated in a prescribed load impedance.
Journal ArticleDOI
A New Theory of Broad-band Matching
TL;DR: In this paper, the problem of designing an optimum, passive, reactive two-port equalizer to match out a dissipative frequency sensitive load to a resistive generator is solved.
Journal ArticleDOI
Explicit formulas for the synthesis of optimum broad-band impedance-matching networks II
Wai-Kai Chen,K. Kourounis +1 more
TL;DR: The paper shows that the most practical RLC load can be optimally matched to a resistive generator over a finite frequency band to achieve the Butterworth or Chebyshev transducer power-gain characteristic of arbitrary order.
Journal ArticleDOI
Explicit formulas for Chebyshev impedance-matching networks, filters and interstages
TL;DR: In this article, a simplified theory for the derivation of optimum matching networks for a restricted class of RCL loads is presented, which is applied also to the case of matching from a specified source network to a specified load network, and to optimum networks for transference of power from an infinite-impedance source to a given load network.