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A Generalized Circuit Model for High Directivity Coupler Using Mu-Negative Transmission Lines
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Aref Pourzadi
Published/Copyright:
October 31, 2013
Abstract
In this paper we demonstrate that using mu negative transmission lines (MNG TLs) in a parallel coupled line coupler, an enhanced directivity coupler can be achieved. For increasing directivity, the even and odd mode electrical lengths should be equal. According to this fact and using the even and odd mode analysis, closed form expressions are obtained for circuit model elements of the proposed coupler. Verification of the proposed circuit topology performance is demonstrated by designing a coupler with specified characteristics.
Received: 2012-10-20
Published Online: 2013-10-31
Published in Print: 2013-12-1
©[2013] by Walter de Gruyter Berlin Boston
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Keywords for this article
directivity;
even and odd mode phase velocities;
mu negative transmission line
Articles in the same Issue
- Masthead
- Broadband Circularly Polarized Microstrip Antenna Using L-Shaped Probe and H-shaped Aperture-Coupling
- Broadband Circularly Polarized Cavity Backed Slot Antenna Array with Broadband Sequential Rotation Feed
- A Generalized Circuit Model for High Directivity Coupler Using Mu-Negative Transmission Lines
- A 0.6-V 5.2 GHz Folded Cascode LNA with Transformer-feedback Technique for Ultra Low Power Applications
- Improved Thermal Stability of RF Power BJT with Ballast Circuits
- Adaptive Power Allocation for Effective Capacity of TAS-MRC Systems
- Outage Probability of Interference-limited Switch and Stay Diversity System over Gamma Shadowed Nakagami-m Fading Channels
- Average Fade Duration of Dual Selection Diversity over Correlated Unbalanced Nakagami-m Fading Channels in the Presence of Cochannel Interference
- Performance Analysis of Cooperative ARQ Scheme with Co-channel Interference
- An Improved Adaptive Tracking Algorithm based on Iteration and Discriminator Optimization for Burst DSSS Signals
