Broadband switched-bit phase shifter using all-pass networks

Adler, Douglas P.; Popovich, Rafi

doi:10.1109/mwsym.1991.146979

Cited by 61 publications

(34 citation statements)

References 5 publications

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“…1, there exist two configurations for second-order commonmode all-pass networks: (a) series-L and (b) series-C configurations [3]. Both configurations exhibit the same S parameters, which can be derived using even-odd mode analysis.…”

Section: All-pass Networkmentioning

confidence: 99%

“…capacitively loaded transmission line [1], reflection-type [2], etc. Among them, all-pass network has been used to realize both digital [3,4] and analog phase shifters [5,6]. The advantages of all-pass phase shifter include excellent return loss and flat insertion loss responses over wide bandwidth and large phase shift under low capacitance tuning ratio [3].…”

Section: Introductionmentioning

confidence: 99%

“…Among them, all-pass network has been used to realize both digital [3,4] and analog phase shifters [5,6]. The advantages of all-pass phase shifter include excellent return loss and flat insertion loss responses over wide bandwidth and large phase shift under low capacitance tuning ratio [3]. Although large phase shift can be obtained, the phase shift is however quite narrowband.…”

Section: Introductionmentioning

confidence: 99%

“…Although large phase shift can be obtained, the phase shift is however quite narrowband. Cascading multiple stages of all-pass networks has been proposed to provide a constant (equal-ripple) phase shift over a wide frequency range [3,4,6,7]. Nevertheless, the phase error reported in previous work is still large.…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, the phase error reported in previous work is still large. For example, phase error of at least ±15ﾟ is observed for both the digital all-pass phase shifter in [3] and analog all-pass phase shifter in [6].…”

Section: Introductionmentioning

confidence: 99%

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Broadband analog phase shifter based on multi-stage all-pass networks

Chen

2013

IEICE Electron. Express

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All-pass phase shifters using ferroelectric varactors are designed, fabricated, and measured. The design equations for the allpass phase shifter are presented. The fabrication process of the ferroelectric varactors is described. Measurement results of singlestage all-pass phase shifters show that phase shift greater than 85ﾟ can be achieved under 10-V bias. At the frequency where maximum phase shift occurs, the insertion loss is less than 2 dB and the return loss is greater than 12 dB. Simulations based on the measured S parameters of the single-stage phase shifters show that, by cascading four stages of individually biased single-stage phase shifters, maximum phase shift of 180ﾟ can be achieved with a phase error as low as ±3ﾟ between 2.1 GHz and 3.25 GHz, corresponding to a 43% bandwidth.

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Section: All-pass Networkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Broadband analog phase shifter based on multi-stage all-pass networks

Chen

2013

IEICE Electron. Express

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A novel three vector sum active phase shifter design for W‐band automotive radar applications

Ozturk

Tekin

2014

Micro & Optical Tech Letters

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This article presents a novel active W-band phase shifter implemented using IHP SiGe Heterojunction Bipolar Transistor (HBT) 0.25-mm SG25H1 technology with three vector (0 -120 -240 ) sum technique. The integrated chip consists of a 3-way Wilkinson power divider/ combiner with 0 -120 -240 phase shifting lines and three low-noise amplifiers (LNA) working at 77 GHz, which comprises a total of 1.5 3 Figure 5 Degradation of SFL convolutionally coded Q-BOPPM TH-IR UWB signals after the fiber transmission: (a) MATLAB signal; (b) as measured at point A in Figure 3; (c) as measured in B2B configuration at point B in Figure 3; (d) as measured after 20-km SMF transmission; and (e) as measured after 30-km SMF transmission. [Color figure can be viewed in the online issue, which is available at wileyonlinelibrary.com]ABSTRACT: An in-line Mach-Zehnder interferometer (MZI) with a magnetic fluid-filled multimode photonic crystal fiber (PCF) fusion spliced into two standard optical fibers was proposed. The interference is induced by the two core mode LP01 and LP11 due to the special air hole structure of PCF, which is insensitive to bending and the Figure 15 Gain/loss graph of 3-way active phase shifter. [Color figure can be viewed in the online issue, which is available at wileyonlinelibrary.com]

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0.8–8 GHz 4-bit MMIC phase shifter for T/R modules

Ferrari

Piattella

2015

Int. J. Microw. Wireless Technol.

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This paper presents the design approach and test results of a full passive, decade bandwidth GaAs MMIC, composed by a phase shifter (PS) with a cascaded absorptive single pole double throw switch, suitable for transmitter/receiver modules in active electronically scanned array. The proposed PS -fabricated using a UMS GaAs 0.25 PHEMT process -combines all-pass filters with high-pass filters, in order to provide less than 13 dB insertion loss, less than +208 phase error and less than +2.5 dB amplitude error in the 0.8-8 GHz bandwidth.

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Broadband switched-bit phase shifter using all-pass networks

Cited by 61 publications

References 5 publications

Broadband analog phase shifter based on multi-stage all-pass networks

Broadband analog phase shifter based on multi-stage all-pass networks

A novel three vector sum active phase shifter design for W‐band automotive radar applications

0.8–8 GHz 4-bit MMIC phase shifter for T/R modules

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