Ferrite-Loaded Half Mode Substrate Integrated Waveguide Phase Shifter

Cheng, Yu Jian; Huang, Qiu Dong; Zhou, Ye Di; Weng, Cheng Xiang

doi:10.2528/pierl14052401

Cited by 4 publications

(8 citation statements)

References 22 publications

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“…In particular, the wave encountering the clockwise arrangement of the magnetic dipoles (↑↓) in the ferrite always experiences higher losses. Similar behaviors were reported in [9] and [15] for single-and dual-slab ferrite SIW phase shifters, respectively. The RF wave seemingly has a stronger interaction with the antisymmetric DC bias when the latter is oriented clockwise than when it is oriented anticlockwise.…”

Section: Antisymmetric Biassupporting

confidence: 86%

“…However, large deviations were observed between theory and experiments, with the measured data showing an FoM of 9.1°/dB. Building on [9], two studies on other ferrite LTCC-P Fig. 1.…”

Section: Introductionmentioning

confidence: 95%

“…Modern antenna systems require compact substrate-based phase shifters that can be conveniently integrated with the remaining planar circuitry. For this purpose, ferrite phase shifters have been implemented in substrate-integrated waveguide (SIW) technology [7]- [9], which is a planar realization of conventional rectangular waveguides. SIW technology is planarized by building a waveguide directly on a substrate; two rows of densely arranged vias resembling side walls connect the two metal layers of the substrate.…”

Section: Introductionmentioning

confidence: 99%

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Inkjet-Printed Ferrite Substrate-Based Vialess Waveguide Phase Shifter

et al. 2023

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Magnetically controlled waveguide-based phase shifters are desirable for their high performance, but are bulky and heavy, thus cannot be easily integrated with printed circuit board (PCB) based circuits. To tackle this, substrate-integrated waveguide (SIW) technology has been utilized, which brings the waveguide to a standard PCB, but requires large numbers of vias as well as multiple cavities in the substrate for ferrite slab placement. This implementation technique involves complex fabrication and yields a relatively low figure of merit (FoM). To alleviate this, we present the first completely vialess ferrite substrate-based waveguide phase shifter realized through low-cost inkjet printing technique. All the four sides of a yttrium iron garnet (YIG) substrate have been metalized through inkjet printing, allowing the fabrication of a conventional rectangular waveguide on a standard magnetic substrate. The prototype has been tested in symmetric as well as antisymmetric modes of biasing and peak FoMs of 160°/dB at 7.22 GHz and 332°/dB at 7.46 GHz have been measured, which are higher than those of the previously reported designs. This all-around inkjet printing approach can open the door to low-cost, integrable magnetic phase shifters with excellent RF performances.

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Section: Antisymmetric Biassupporting

confidence: 86%

“…However, large deviations were observed between theory and experiments, with the measured data showing an FoM of 9.1°/dB. Building on [9], two studies on other ferrite LTCC-P Fig. 1.…”

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

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Inkjet-Printed Ferrite Substrate-Based Vialess Waveguide Phase Shifter

et al. 2023

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“…The magnetized ferrite materials are widely used in tunable microwave devices due to their effective permeability properties that tune by changing DC magnetic bias. [1][2][3][4][5] Along with the advancement of the substrate integrated waveguide (SIW) technology, many ferrite-loaded SIW components, such as tunable filters, 6 tunable antennas, [7][8][9] phase shifters, 10 isolators, 11 tunable cavity resonators, 12 and chamber amplifiers have been reported in recent years.…”

Section: Introductionmentioning

confidence: 99%

Substrate integrated waveguide filter based on the magnetized ferrite with tunable capability

Shirkolaei

Aslinezhad

2020

Micro & Optical Tech Letters

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In this paper, a miniaturized substrate integrated waveguide filter on the magnetized ferrite is presented. The proposed filter has a small size, high power transmission capability, relatively good bandwidth, and tunable frequency bandwidth. This filter is tunable due to the magnetic bias applied to the ferrite substrate. Compared to the tunable filters reported in previous references based on PIN diode, varactors, and mechanical changes, the proposed filter has a relatively wide adjustment on the operation frequency. Using this method dramatically reduces the complexity of the external control system. This tunable filter is optimized using the Ansoft HFSS software and then fabricated. The measured operating frequency of the filter is tunable from 5.3 to 7.15 GHz by changing the magnetic bias from 100 Oe to 1100 Oe. In the frequency range of 5.55 to 6.95 GHz, an insertion loss of less than 1.1 dB and a return loss of better than 20 dB are achieved. A good agreement between the simulation and experimental results was achieved.

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“…Its bandwidth is about 20% in theory. An X-band ferrite-loaded half mode SIW (HMSIW) phase shifter is presented in [14]. Its insertion loss is less than 3.2 dB at the frequency range from 9.7 to 11 GHz with the return loss of 10 dB.…”

Section: Introductionmentioning

confidence: 99%

An Improved Broadband Siw Phase Shifter With Embedded Air Strips

Hao¹,

Xia²,

Tatu³

et al. 2016

PIER C

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Abstract-In this paper, an improved broadband substrate integrated waveguide (SIW) phase shifter with embedded air strips is presented. Phase shifter can be generated based on the variable widths of SIW, variable lengths of microstrip line and a row of embedded air strips. The simulated and measured results both show that this kind of SIW phase shifter has excellent performance for a wider bandwidth. Measured results indicate that the proposed SIW phase shifters for the 45 • and 90 • versions have achieved the fractional bandwidths of 59.6% from 10.2 to 18.85 GHz with the accuracy of 2.5 • , and of 62.3% from 9.5 to 18.1 GHz with the accuracy of 5 • , respectively. The return losses are better than 15.8 dB and 14.5 dB for 45 • and 90 • modules, respectively. In addition, the insertion losses are both found to be better than 1.6 dB in the considered band.

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Ferrite-Loaded Half Mode Substrate Integrated Waveguide Phase Shifter

Cited by 4 publications

References 22 publications

Inkjet-Printed Ferrite Substrate-Based Vialess Waveguide Phase Shifter

Inkjet-Printed Ferrite Substrate-Based Vialess Waveguide Phase Shifter

Substrate integrated waveguide filter based on the magnetized ferrite with tunable capability

An Improved Broadband Siw Phase Shifter With Embedded Air Strips

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