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Author : David Lindsay Wills
Release : 1985
Genre :
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Book Synopsis Broad-band Lumped Element Directional Coupler Design in the VHF-UHF Band by : David Lindsay Wills
Download or read book Broad-band Lumped Element Directional Coupler Design in the VHF-UHF Band written by David Lindsay Wills. This book was released on 1985. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cletus A. Hoer
Release : 1972
Genre :
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Book Synopsis Broad-Band Lumped-Element Directional Coupler by : Cletus A. Hoer
Download or read book Broad-Band Lumped-Element Directional Coupler written by Cletus A. Hoer. This book was released on 1972. Available in PDF, EPUB and Kindle. Book excerpt: The patent describes a broad-band lumped element directional coupler for measuring either the forward or reflected power in a coaxial transmission line. A resistive voltage divider is coupled to the center conductor of a transmission line with a capacitor to keep the phase of the voltage sampling circuit equal to the phase of the current sampling circuit. Capacitors shunting the resistors make the voltage ratio of the resistive voltage divider independent of frequency over a large frequency range. Directivity greater than 50 dB is achieved over a large frequency range for coupling ratios of 30, 40 and 50 dB.
Author : Constantine Rodolph Jenkins
Release : 1971
Genre : Directional couplers
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Book Synopsis Low Frequency Lumped Element Directional Couplers by : Constantine Rodolph Jenkins
Download or read book Low Frequency Lumped Element Directional Couplers written by Constantine Rodolph Jenkins. This book was released on 1971. Available in PDF, EPUB and Kindle. Book excerpt: "Lumped element directional couplers are desirable at frequencies below the VHF range because they eliminate the large physical size necessary for the distributed element directional couplers. The purpose of this work is to describe the theory and design of such low frequency lumped element directional couplers. A model for the coupler is developed and the equations which describe it are derived. Scattering matrices for one and two section couplers are obtained. Computer solutions for three section couplers are presented. Experimental results for one, two, and three section couplers are presented and comparison with theory are made. Comparisons of theoretical and experimental work show that lumped element couplers are useful at low frequencies"--Abstract, leaf ii.
Author : Dawit Y. Naizghi
Release : 2014
Genre : Directional couplers
Kind : eBook
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Book Synopsis Design and Test of a 415 Megahertz Ultra High Frequency Directional Coupler by : Dawit Y. Naizghi
Download or read book Design and Test of a 415 Megahertz Ultra High Frequency Directional Coupler written by Dawit Y. Naizghi. This book was released on 2014. Available in PDF, EPUB and Kindle. Book excerpt: The following paper presents the design and test of a 415 MHz UHF directional coupler. A coupled line and lumped element directional couplers were designed and simulated using Advanced Design System (ADS) and optimized to achieve the required coupling coefficient and isolation. The S-parameter plots were generated to characterize the performance of the designed couplers.
Author :
Release : 2004
Genre :
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Book Synopsis Preliminary Considerations for the Design of a Wide-Band Directional Coupler by :
Download or read book Preliminary Considerations for the Design of a Wide-Band Directional Coupler written by . This book was released on 2004. Available in PDF, EPUB and Kindle. Book excerpt:
