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Proceedings ArticleDOI

A W-band miniature power divider based on E-faced-folded magic-T junction

20 Jul 2016-pp 1-3
TL;DR: In this article, a novel design of W-band power divider using E-faced-folded waveguide magic-T junction to realize the miniaturization is proposed.
Abstract: A novel design of W-band power divider using E-faced-folded waveguide magic-T junction to realize the miniaturization is proposed in this paper. A stepped regular triangular prism and the stepped impedance transformer are utilized in order to obtain excellent performance. Besides, the performance of the E-faced-folded magic-T power divider is also improved by using short planes. The measured results show that the insertion loss of the power divider is better than 0.6dB and the return loss is better than 15dB. The measured average E-H isolation is better than 30dB from 92GHz to 100GHz range.
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Journal ArticleDOI

1 citations


Additional excerpts

  • ...f bl; u0 ð Þ511sin2bl cos(2)u022cosbl cos blcos ð Þ 22cosu0 sinbl sin blcosu0 ð Þ (2)...

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Proceedings ArticleDOI
04 Apr 2022
TL;DR: In this paper , a micromachined eight-way T-type power divider based on micro-coaxial lines is presented, which can be widely used in power combined amplifiers and phased arrays.
Abstract: This paper presents a micromachined eight-way T-type power divider based on micro-coaxial lines. For ease of testing, two identical power dividers are placed in back-to-back configuration, and CPW to micro-coaxial line transitions are added at the input and output ports. The whole structure is directly measured using an on-wafer probe system. At 75–110 GHz, the measured return loss is better than 15 dB and the total insertion loss is 1–2 dB, showing excellent performance in terms of loss and phase balance. The divider can be widely used in power combined amplifiers and phased arrays.

1 citations

Journal ArticleDOI

Cites background from "A W-band miniature power divider ba..."

  • ...With the rapid development of the monolithic microwave-integrated circuit (MMIC) technology, various waveguide dividers/combiners with microstrip probes have been reported.(1-7) However, these structures are all E-plane probe....

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Proceedings ArticleDOI
01 Dec 2020
TL;DR: In this article, two ultra-wideband T-junction power dividers based on rectangular micro coaxial structure are proposed, one is a 3-dB power divider and the other is a 2:1 unequal power divifier.
Abstract: In this paper, two ultra-wideband T-junction power divider based on rectangular micro coaxial structure are proposed. One is a 3-dB power divider and the other is a 2:1 unequal power divider. The rectangular micro-coaxial structure has the advantages of small size, ultra-wideband and small transmission loss, so the power divider based on this structure has good performance. The center conductor is slotted to realize device miniaturization. The simulation results show that the transmission loss is less than 0.3 dB from 60 GHz to 110 GHz in both dividers. And the return loss of 3-dB power divider and 2:1 unequal power divider are better than 19.5dB and 14dB respectively.
References
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Book
01 Jan 1965
TL;DR: This book discusses waveguide junctions with several arms, dielectrics in waveguides, mode transformations, and the symmetry of wave guide junctions.
Abstract: * Chapter 1: Introduction * Chapter 2: Electromagnetic waves * Chapter 3: Waveguides as transmission lines * Chapter 4: Elements of network theory * Chapter 5: General microwave circuit theorems * Chapter 6: Waveguide circuit elements * Chapter 7: Resonant cavities as microwave circuit elements * Chapter 8: Radial transmission lines * Chapter 9: Waveguide junctions with several arms * Chapter 10: Mode transformations * Chapter 11: Dielectrics in waveguides * Chapter 12: The symmetry of waveguide junctions

648 citations


"A W-band miniature power divider ba..." refers background in this paper

  • ...Hence, the waveguide is usually applied to the power dividers in W-band due to its lower insertion loss and high power capacity....

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Proceedings ArticleDOI
23 May 2010
TL;DR: In this article, a W-band solid-state power amplifier with an output power of 5.2W at 95 GHz and greater than 3 watts over the 94 to 98.5 GHz band was reported.
Abstract: This paper reports a W-band solid-state power amplifier with an output power of 5.2W at 95 GHz and greater than 3 watts over the 94 to 98.5 GHz band. These SOA results were achieved by combining 12 GaN MMICs in a low-loss radial-line combiner network. The 12-way combiner demonstrates an overall combining efficiency of 87.5%, and excluding combiner conductor losses (0.3 dB), exhibits a combining efficiency of 93.7% at 95GHz. The size of the 12-way amplifier/combiner is only 2.39″ dia. × 1.5″ length. This work represents the first application of the radial-line combiner configuration to applications at W-band frequencies, and establishes new levels of performance for solid-state power amplifiers operating at these frequencies.

77 citations


"A W-band miniature power divider ba..." refers background in this paper

  • ...The measured results show that the insertion loss of the power divider is better than 0.6dB and the return loss is better than 15dB....

    [...]

Journal ArticleDOI
TL;DR: In this article, a planar magic-T using an E-plane substrate integrate waveguide (SIW) power divider and a SIW-slotline transition is proposed.
Abstract: A novel planar magic-T using an E-plane substrate integrate waveguide (SIW) power divider and a SIW-slotline transition is proposed in this letter. Due to the metal ground between the two input/output ports, the E-plane SIW power divider has a 180° reverse phase characteristic. A SIW-slotline transition is utilized to realize the H-plane input/output port of the magic-T. Good agreement between the measured and simulated results indicate that the planar magic-T has a fractional bandwidth (FBW) of 18% (13.2-15.8 GHz), and the amplitude and phase imbalances are less than 0.24 dB and 1.5°, respectively.

53 citations


"A W-band miniature power divider ba..." refers background in this paper

  • ...The simulation results show that when the side length of the bottom triangular prism increases the reflectance of port-1, port-2 and port-H become better to some extent....

    [...]

Journal ArticleDOI
TL;DR: In this article, a slotline to substrate integrated waveguide transition is proposed for the development of substrate integrated circuits, and a planar magic-T is studied and designed with a very good performance within the experimental frequency range of 8.4-9.4 GHz.
Abstract: In this letter, a slotline to substrate integrated waveguide transition is proposed for the development of substrate integrated circuits. The insertion loss of the back-to-back transition is less than 1 dB from 8.7 to 9.0 GHz. With this transition, a planar magic-T is studied and designed. Measured results indicate a very good performance of the fabricated magic-T is observed within the experimental frequency range of 8.4-9.4 GHz. The amplitude and phase imbalances are less than 0.2 dB and 1.5deg, respectively.

49 citations


"A W-band miniature power divider ba..." refers background in this paper

  • ...The simulation results show that when the side length of the bottom triangular prism increases the reflectance of port-1, port-2 and port-H become better to some extent....

    [...]

Proceedings ArticleDOI
Schellenberg, Watkins, Micovic, Kim, Han 
01 Jan 2010

43 citations