US 10,250,216 B2Granted

Multistage matching network and related techniques

AssigneeThe Regents of the University of Colorado, a body corporate

InventorsAshish Kumar, Sreyam Sinha, Khurram K. Afridi

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Abstract

Multistage matching networks and analytical frameworks for improving and/or optimizing the networks is provided. In one example, a framework relaxes the resistive constraint on the input and load impedances of the stages of a multistage matching network and allows them to be complex. Based on this framework, the design of multistage matching networks can be improved or optimized, such as using a method of Lagrange multipliers. A design optimization approach, for example, can be used to predict an optimum distribution of gains and impedance characteristics among the stages of a multistage matching network. The efficiency of matching networks designed using this example approach is compared with a conventional design approach, and it is shown that significant efficiency improvements are possible.

Claims20

Dependent claims

A multistage matching network comprising:

a first stage providing an input stage of the matching network, the first stage comprising a pair of matching network input terminals, a pair of first stage output terminals, and at least two first stage reactive components disposed between the pair of matching network input terminals and the pair of first stage output terminals, the first stage comprising a near-resistive input impedance;
and
a second stage providing an output stage of the matching network, the second stage comprising a pair of second stage input terminals coupled to the pair of first stage output terminals, a pair of matching network output terminals, and at least two second stage reactive components disposed between the pair of second stage input terminals and the pair of matching network output terminals, the second stage comprising a complex input impedance and a near-resistive load impedance.

Dependencies are inferred from the claim text.

Facts

Application: 15/633,526Filed 26 Jun 2017 · us provisional application
Priority: 26 Jun 2016
Published: US 2017/0373662 A128 Dec 2017
Granted: 2 Apr 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H03H 7/40
Impedance-matching networks: automatic matching of load impedance to source impedance
H02J 50/05
Circuit arrangements or systems for wireless supply or distribution of electric power: using capacitive coupling
H02J 50/10
Circuit arrangements or systems for wireless supply or distribution of electric power: using inductive coupling
H03H 7/0115
Frequency selective two-port networks: comprising only inductors and capacitors