Journal Article10.2528/PIERL08031603
Wideband Differential Phase Shifter Using Microstrip Nonuniform Transmission Lines
TL;DR: In this paper, a new structure for wideband differential phase shifter is proposed, which consists of a microstrip non-uniform transmission line (NTL) and a micro-strip uniform transmission line(UTL).
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Abstract: A new structure is proposed for wideband differential phase shifter. The proposed structure consists of a microstrip Nonuniform Transmission Line (NTL) and a microstrip Uniform Transmission Line (UTL). To optimally design the NTL, its strip width is expanded in a truncated Fourier series, firstly. Then, the optimum values of the coefficients of the series are obtained through an optimization approach to have low phase shift error and low reflection coefficient in desired frequency bandwidth. The usefulness of the proposed structure is studied using two examples.
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Citations
Subwavelength microwave guiding by periodically corrugated strip line
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Design of a Dual Monopole Antenna with Wideband Frequency
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Standard Smith Chart Approach to Solve Exponential Tapered Nonuniform Transmission Line Problems
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A New Class of Broad-Band Microwave 90-Degree Phase Shifters
TL;DR: In this paper, the authors describe a new type of 90° differential phase shifter which has a constant resistance input, and which is useful over bandwidths as large as 5:1 in the microwave region.
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Novel Schiffman phase shifters
J.L.R. Quirarte,J.P. Starski +1 more
TL;DR: In this paper, different configurations of coupled lines or parallel connected coupled lines can be used together with a uniform transmission line, other coupled lines, or parallel coupled lines in order to obtain a differential phase shifter with loose coupled lines and the same performance as for the standard case.
194
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