branch-line hybrid coupler
A new design method for a dual band branch line hybrid coupler
... band branch line hybrid coupler(BLHC) with different power division ratios at two ...band coupler with different power division ratios is designed for ...
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A Miniaturized Filtering 3-dB Branch-Line Hybrid Coupler with Wide Suppression Band
... 3-dB branch-line hybrid coupler with wide stopband responses is presented in this ...transmission line, which will realize size reduction and wide stopband characteristic of the ...a ...
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Compact and Performance Evaluation of Branch-Line Hybrid Coupler Microstrip for Long Term Evolution Applications
... new branch-line hybrid coupler using a meander lines for LTE applications is proposed [5, ...proposed coupler is designed to cover wide band ...conventional hybrid ...
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A Novel Compact Feeding Network for Array Antenna
... A branch-line hybrid coupler has four λ 4 transmission lines wherein one pair has characteristic impedances of ...Two branch-line couplers have been used for dividing the outputs ...
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Reconfigurable 3/6 dB Novel Branch Line Coupler
... Branch line couplers, parallel coupled-line couplers, and rat-race hybrids are very important passive components in many wireless communication and mi- crowave ...90˚ hybrid and 180˚ ...
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A Novel Miniaturized Branch-Line Coupler with Equivalent Transmission Lines
... needs precise inductor models based on careful measurements of test elements [3, 4]. The combination of shunt lumped capacitors with short high-impedance transmission lines is another option in shrinking the coupler’s ...
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Miniaturized Size Branch Line Coupler Using Open Stubs with High-Low Impedances
... the coupler, there are several techniques which have been proposed and developed ...and Line Rat-race hybrid couplers as an alternative to produce compact designs have been proposed in ...
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A Novel Dual-Band Π-Shaped Branch-Line Coupler with Stepped-Impedance Stubs
... Several design parameters, which are brought in by the stepped- impedance stubs, are studied and analyzed to provide the design guidelines. For demonstration, a quadrature hybrid operating in 2.4/5.2 GHz is ...
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Compact Branch-Line Coupler for Harmonic Suppression
... The branch-line coupler as a four-port power divider in microwave circuits has been redesigned for new requirements, such as compact size, wide bandwidth, and multi-band ...divider, ...
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Branchline Coupler as Duplexer
... degree hybrid or branch line ...know branch line coupler or 90 degree hybrid provides 90 degree phase shift between its ...two branch line coupler ...
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Miniaturization of Three-Section Branch-Line Coupler Using Diamond-Series Stubs Microstrip Line
... conventional branch-line coupler is that at low frequencies it will consume a significant amount of circuit area and provides a narrow fractional bandwidth of 10 to 20% ...cascading branch ...
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A New Equal Power Quadrature Branch Line Coupler for Dual-Band Applications
... Multiband radio frequency circuits are essential components to design compact and low cost multiband wireless communication systems. Branch line couplers and power dividers are a few of the main components ...
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Compact Slow-Wave Branch-Line Coupler Using Crossing Bond Wires
... where L and C are the equivalent distributed inductance and capacitance of the transmission line, respectively. From Eq. (1), the wavelength can be smaller by increasing L and C. Yet, capacitance C is related to ...
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Novel CRLH TL Metamaterial and Compact Microstrip Branch-Line Coupler Application
... The narrower bandwidth of the proposed BLC can be successfully interpreted through the relatively steep phase response of impedance transformer (depicted in Fig. 5). It also indicates that the proposed coupler has ...
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Novel Enhanced and Miniaturized 90° Coupler for 3G Eh Mixers
... Figure 2. Equivalent circuit for horizontal transmission lines. This structure must be optimized to equalize the S parameter matrices of the conventional coupler parts and the circuits shown in Figure 1 and Figure ...
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A New Miniaturized Microstrip Branch-Line Coupler with Good Harmonic Suppression
... proposed branch-line coupler is shown in ...conventional branch-line ...high-impedance line and a long low-impedance line with ...high-impedance line is very short ...
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Realization of a Compact Branch-Line Coupler Using Quasi-Fractal Loaded Coupled Transmission-Lines
... coupled transmission-line’s constituent parameters. It is necessary to emphasize that the coupled transmission-line in Figure 1 behaves like a quarter-wavelength arm in the branch-line coupler ...
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Miniaturized Branch-Line Coupler with Wide Upper Stopband Using Right-Angled Triangle Artificial Transmission Line
... microstrip line is designed on an F4B-2 substrate with a thickness of ...transmission line, the uniform transmission line can be equivalent to series inductor L 1 and shunt capacitor C 1 ...
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Design of Planar Dual-Band Branch-Line Coupler with Π-Shaped Coupled Lines
... With the rapid progress of modern wireless communication systems, more and more dual- or multi-band RF and microwave subsystems are developed instead of the conventional structures for reducing system complicity, sharing ...
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Compact Branch-Line Coupler Using Uniplanar Spiral Based CRLH-TL
... Microstrip branch-line couplers, which offer equal amplitude and 90-degree phase shift between two out-ports, have been widely used in microwave circuits and systems, such as adaptive antenna arrays, ...
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