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Proceedings ArticleDOI

Design and fabrication of 430MHz unequal amplitude equal phase power splitter for tropospheric wind profiling radar feeder network

TL;DR: In this article, the feasibility of an unequal amplitude equal phase power splitter using a microstrip technology in the UHF band is proposed, which is the first work to investigate the feasibility and feasibility of power splitting with 3-options, these are conventional microstrip design, Power splitter with input transformer and arbitrary design impedance (A) is introduced to control high impedance values and Power splatter with general design equations.
Abstract: In this Paper, the feasibility of an unequal amplitude equal phase power splitter using a microstrip technology in the UHF band is proposed. Unequal splitter with 3-options is designed in the present work, these are conventional microstrip design, Power splitter with input transformer & arbitrary design impedance (A) is introduced to control high impedance values and Power splitter with general design equations (Selection of Z1 or Z2 with required Impedances). Finally Power splitter with general design equations is realized. Here the impedance of one of the transmission line selected is 35 ohm which is best suited for the impedance limitation of 20Ω-80Ω with a large power dividing ratio in wind profiling radar applications where the side lobe levels are most negative required. The simulated and measured results are presented to verify our proposed design.
References
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Book
01 Jan 1982
TL;DR: The most up-to-date resource available on antenna theory and design as mentioned in this paper provides an extended coverage of ABET design procedures and equations making meeting ABET requirements easy and preparing readers for authentic situations in industry.
Abstract: The most-up-to-date resource available on antenna theory and design Expanded coverage of design procedures and equations makes meeting ABET design requirements easy and prepares readers for authentic situations in industry New coverage of microstrip antennas exposes readers to information vital to a wide variety of practical applicationsComputer programs at end of each chapter and the accompanying disk assist in problem solving, design projects and data plotting-- Includes updated material on moment methods, radar cross section, mutual impedances, aperture and horn antennas, and antenna measurements-- Outstanding 3-dimensional illustrations help readers visualize the entire antenna radiation pattern

14,065 citations

Book
01 Apr 1990

10,459 citations

01 Jan 2005
TL;DR: The most up-to-date resource available on antenna theory and design is the IEEE 802.11 as mentioned in this paper, which provides detailed coverage of ABET design procedures and equations, making meeting ABET requirements easy and preparing readers for authentic situations in industry.
Abstract: The most-up-to-date resource available on antenna theory and design. Expanded coverage of design procedures and equations makes meeting ABET design requirements easy and prepares readers for authentic situations in industry. New coverage of microstrip antennas exposes readers to information vital to a wide variety of practical applications.Computer programs at end of each chapter and the accompanying disk assist in problem solving, design projects and data plotting.-- Includes updated material on moment methods, radar cross section, mutual impedances, aperture and horn antennas, and antenna measurements.-- Outstanding 3-dimensional illustrations help readers visualize the entire antenna radiation pattern.

2,907 citations

Journal ArticleDOI
TL;DR: In this article, a circularly symmetric power divider is described which splits a signal into n equiphase equiamplitude parts where n can be odd or even.
Abstract: A circularly symmetric power divider is described which splits a signal into n equiphase equiamplitude parts where n can be odd or even. The power divider provides isolation between output terminals and approximately matched terminal impedances over about a 20 per cent band. A theory of operation is given which yields the necessary design parameters, and an experimental model is described which has a minimum isolation of -27 db between output terminals, an output VSWR of 1.6, and an input VSWR of 1.2.

1,457 citations

Journal ArticleDOI
TL;DR: In this article, the authors presented the design and measured performances of a microstrip 4:1 unequal Wilkinson power divider, which was designed using the conventional Wilkinson topology with the defected ground structure.
Abstract: This letter presents the design and measured performances of a microstrip 4:1 unequal Wilkinson power divider. The divider is designed using the conventional Wilkinson topology with the defected ground structure (DGS). The DGS on the ground plane provides an additional effective inductive component to the microstrip line. This enables the microstrip line to be realized with very high impedance of over 150 /spl Omega/. By employing the DGS to the unequal Wilkinson topology, 4:1 power dividing ratio can be obtained easily without any problem in realization, while it has been impractical to fabricate a 4:1 divider using the conventional microstrip line because of very thin conductor width and extremely low aspect ratio (W/H). As an example, a 4:1 divider has been designed and measured at 1.5 GHz in order to show the validity of the proposed DGS and unequal divider. The measured performances of the 4:1 unequal power divider well agree with the exactly same dividing ratio as that expected.

215 citations