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hybrid coupler

Compact and Performance Evaluation of Branch-Line Hybrid Coupler Microstrip for Long Term Evolution Applications

Compact and Performance Evaluation of Branch-Line Hybrid Coupler Microstrip for Long Term Evolution Applications

... branch-line hybrid coupler using a meander lines for LTE applications is proposed [5, ...proposed coupler is designed to cover wide band ...conventional hybrid coupler, the proposed ...

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Design Analysis of Slotted Diagonal Shape Patch Antenna with Hybrid Coupler A.Sahaya Anselin Nisha 1, T.Jayanthy2

Design Analysis of Slotted Diagonal Shape Patch Antenna with Hybrid Coupler A.Sahaya Anselin Nisha 1, T.Jayanthy2

... Abstract —In this paper hybrid coupler connected diagonal shaped patch antenna with slot is examined. Theoretical performance is carried out using advanced system design (ADS) software. Measurement of ...

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Size Reduction and Harmonic Suppression of Rat-Race Hybrid Coupler Using Defected Microstrip Structure

Size Reduction and Harmonic Suppression of Rat-Race Hybrid Coupler Using Defected Microstrip Structure

... Abstract—In this paper, defected microstrip structure (DMS) is applied to design a compact microstrip rat-race hybrid coupler. The proposed structure introduces both harmonic signal suppression and a ...

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A Miniaturized Filtering 3-dB
 Branch-Line Hybrid Coupler with Wide Suppression Band

A Miniaturized Filtering 3-dB Branch-Line Hybrid Coupler with Wide Suppression Band

... branch-line hybrid coupler with wide stopband responses is presented in this ...the coupler. Prototype of a branch-line hybrid coupler, which divides the power equally with 90 ◦ phase ...

7

Bandwidth Improvement of a Compact Quadrature Hybrid Coupler with Harmonic Rejection Using Lumped Elements

Bandwidth Improvement of a Compact Quadrature Hybrid Coupler with Harmonic Rejection Using Lumped Elements

... quadrature hybrid coupler with harmonic suppression using lumped-element band-stop resonator is ...proposed coupler and the expressions of lumped elements are ...

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A new design method for a dual band branch line hybrid coupler

A new design method for a dual band branch line hybrid coupler

... branch-line hybrid coupler is widely adopted in the design of dual-band dividers ...branch-line coupler technique using eight two-step stubs has been reported ...conventional hybrid couplers, ...

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Compact Multilayer Hybrid Coupler Based on Size Reduction Methods

Compact Multilayer Hybrid Coupler Based on Size Reduction Methods

... multilayer hybrid coupler, we designed three hybrid ...conventional hybrid coupler was converted into two λ g / 8 transmission lines using microstrip via-holes with sandwich ...

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Realization of Miniaturized Quadrature Hybrid Coupler with Reduced Length Branch Arms Using Recursively Loaded Stubs

Realization of Miniaturized Quadrature Hybrid Coupler with Reduced Length Branch Arms Using Recursively Loaded Stubs

... high impedance transmission line segments with distributed capacitor are used to achieve 62% miniaturization. Increased design flexibility and miniaturization by replacing branch arms of a hybrid coupler ...

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What Do We Know About Technical Assistance? Enhancing the Science and Practice of Technical Assistance via a Research Synthesis

What Do We Know About Technical Assistance? Enhancing the Science and Practice of Technical Assistance via a Research Synthesis

... The initial design goal was to have two channel center frequencies at 500 MHz, and 1 GHz. Various momentum simulations using a 10 mil thickness for the PCB and 20 mil traces widths led to the understanding that true ...

181

Compact Butler Matrix Design

Compact Butler Matrix Design

... xiii LIST OF TABLES NO DESCRIPTION PAGE 2.1 Specification of microstrip design 25 4.1 Summary of simulation result hybrid coupler 46 4.2 Summary of simulation result crossover 49 4.3 Des[r] ...

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Isolation Optimization Method on the Coupler

Isolation Optimization Method on the Coupler

... This research begin with a calculation of the dimensions of the conventional BLC formula. This initial design calculation will be examined in the simulation. Modification on BLC dimensions is conducted as a way to obtain ...

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V-Band Quadrature Phase Shift Keying Demodulator Using Wr-12 Six-Port

V-Band Quadrature Phase Shift Keying Demodulator Using Wr-12 Six-Port

... fabricated at 61 GHz, using the rectangular waveguide technology, and on the block diagram presented in [5]. WR-12 is the standardized rectangular waveguide, suitable for V-band and E-band. In the following, the ...

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A Novel Miniaturized Microstrip Six-Port Junction

A Novel Miniaturized Microstrip Six-Port Junction

... ◦ hybrid coupler, we keep the four T joints of conventional 90 ◦ hybrid coupler and change two pairs of λ/4 transmission lines with characteristic impedance of Z P = Z 0 and Z R = Z 0 ...

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Novel Wideband Multilayer Butler Matrix Using CB-CPW Technology

Novel Wideband Multilayer Butler Matrix Using CB-CPW Technology

... quadrature hybrid coupler, or 3 dB branch-line coupler has been one of the mainstays in microwave systems having uses in power splitters and mixers ...branch-line coupler using open-circuited ...

16

Multiple Phase Shifter Design By Using Pin Diode For MIMO Application

Multiple Phase Shifter Design By Using Pin Diode For MIMO Application

... xii LIST OF FIGURE FIGURE TITLE PAGE 2.1 Hybrid Coupler Phase Shifter 4 2.2 Loaded Line Phase Shifter 5 2.3 Switched Line Phase Shifter 6 2.4 Rotary Phase Shifter 6 2.5 Cross Section of [r] ...

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Vector Modulator for Phase Shifting in Passive Beamforming Wireless Systems

Vector Modulator for Phase Shifting in Passive Beamforming Wireless Systems

... designing or using variable RF attenuators, it is necessary to ensure that the RF attenuator retains constant impedance over its operating range to ensure the correct operation of the interfacing circuitry. Variable ...

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Complex Impedance Transformers Based on Branch-Line Hybrid Couplers

Complex Impedance Transformers Based on Branch-Line Hybrid Couplers

... Abstract—A topology, equations and design methodology for complex impedance-transforming branch-line hybrid couplers are presented. This method also allows the realization of real impedance- transforming to higher ...

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A Novel Compact Feeding Network for Array Antenna

A Novel Compact Feeding Network for Array Antenna

... The layout of the feeding network is shown in Fig. 2(a). These couplers and power divider are made of microstrip lines with different impedances. A branch-line hybrid coupler has four λ 4 transmission lines ...

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Dual Circularly Polarized Substrate Integrated Waveguide Cavity-Backed Antenna with Enhanced Bandwidth and Reduced Size for Wideband Wireless Applications

Dual Circularly Polarized Substrate Integrated Waveguide Cavity-Backed Antenna with Enhanced Bandwidth and Reduced Size for Wideband Wireless Applications

... quadrature hybrid coupler, the proposed double-layered stacked antenna, consisting of a perturbed circular SIW cavity and an improved circular patch radiator, is designed, analyzed, and ...

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Nd:Al2O3 as a gain material for integrated devices

Nd:Al2O3 as a gain material for integrated devices

... Each of the designed chips is numbered by a binary code, consisting of 7 rectangles, in which a big rectangle represents a binary ’1’ and a small rectangle represents a binary ’0’. Whenever ’wafer area’ is mentioned in ...

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