Two-port network

About: Two-port network is a research topic. Over the lifetime, 278 publications have been published within this topic receiving 1807 citations.

Two-port network analyzer calibration using an unknown 'thru'

Abstract: A procedure performed by using a genuine two-port reciprocal network instead of a standard 'thru' in a full two-port error correction of an automatic network analyzer is presented. Although it can be applied to any type of waveguide system, the proposed technique is particularly useful with noninsertable coaxial or one-wafer devices. Experimental comparisons show that the suggested procedure provides a great degree of accuracy. >

Fundamentals of RF circuit design : with low noise oscillators

Abstract: Preface Transistor and Component Models at Low and High Frequencies Two Port Network Parameters Small Signal Amplifier Design and Measurement Low Noise Oscillators Mixers Power Amplifiers a Real Timea Large Signal Modelling Index

Resonant Immittance Converter Topologies

Abstract: An immittance converter (IC), in general, is a two-port network, in which input impedance is proportional to the load admittance connected across the output terminals and is useful in transforming a voltage source into a current source and vice versa. In this paper, a family of lumped-element resonant IC (RIC) topologies is identified by investigating the transmission parameters of various topological structures of electrical networks. In all, 24 RIC topologies have been identified with three and four reactive elements. The operating point and the design condition, under which these topologies exhibit immittance conversion characteristics, are derived. The suitability of these topologies in terms of absorbing parasitic components and providing inherent dc blocking to the transformer is examined. The analysis and design is illustrated with a newly identified four-element RIC topology as a constant-current power supply and validated with experimental results on a 250-W 105-kHz prototype converter.

An accurate method for impedance measurement of rfid tag antenna

Abstract: This paper presents a method of antenna impedance measurement for RFID tag antenna based on a differential probe. The importance of accurate impedance measurement in optimal design of tag antenna, especially for the metal tags, is first addressed. Afterwards, an overview of the existing methods based on the single- ended probe and the balun probe is presented. The proposed method using the differential probe is explained based the well-known two port network model. Experiments for both balanced and unbalanced tag antenna measurement demonstrate the differential probe can provided better agreement with simulated results.

Techniques for Correcting Scattering Parameter Data of an Imperfectly Terminated Multiport When Measured with a Two-Port Network Analyzer

Abstract: Two techniques are described which correct scattering parameter data taken on an N-port device measured with N-2 imperfect terrniuations and a two-port network analyzer. The first technique rises a simple iterative algorithm and may be easily implemented in software. Each iteration reduces the error due to imperfect terminations typically by one decade. The second, more complicated, technique uses a general closed-form solution which requires specially developed Gamma-R parameters of which S-, Y-, and Z-parameters are particular cases. The closed-form solution is completely valid for any termination. The closed-form solution is the limit to which the iterative solution converges. The iterative technique has been implemented in software controlling an HP 8409 automated microwave network analyzer.