Investigation of Symmetry Influence in Substrate Integrated Waveguide (SIW) Band-Pass Filters using Symmetric Inductive Posts

Bui, Cao Tri; Lorenz, P.; Sağlam, M.; Kraemer, W.; Jansen, R.H.

doi:10.1109/eumc.2008.4751496

Cited by 10 publications

(4 citation statements)

References 2 publications

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“…The equivalent circuit of the inductive post is as shown in Figure 4. The effect of introducing inductive posts in basic wave-guide could be referred in [8,9,12,22]. The inductive posts together with basic SIW wave-guide gives a band pass response [22].…”

Section: Siw Band Pass Filter Designmentioning

confidence: 99%

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Miniaturized Band Pass Filter in Substrate Integrated WaveguideTechnology

Parameswaran¹,

Athira²,

Raghavan³

2018

IJET

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Miniaturization is an important criteria in the selection of devices for next generation communication systems. A novel miniaturization technique for an inductive post filter is investigated in this paper. Miniaturization is not so popular in inductive post Substrate Integrated Waveguide (SIW) filter and so considerable amount of research is to be done in this domain. A band pass filter in SIW technology using inductive posts is realized and further analyses are carried out. The insertion loss in the pass band is found to be 0.5 dB and the return loss is 22 dB. In this paper, we investigate the use of slow wave technology for miniaturization. Unlike the conventional SIW, the slow wave SIW topology requires a double layer substrate with internal metallized vias introduced in the bottom layer connected to the bottom conductive plane. The number of rows of internal metallized vias was chosen based on a parametric study. The proposed miniaturization technique shows that the SIW filter is 21.6 % and 34.6 % miniaturized in size and area respectively. The response of the filter covers Ka band and hence is suitable for satellite communication application. A quality factor of 506 is achieved for the miniaturized filter.

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Section: Siw Band Pass Filter Designmentioning

confidence: 99%

“…Band pass filter with a combination of CSRR and DGS in SIW is also proposed [2]. Introducing inductive posts and irises in SIW can also result in a band pass filter [7][8][9][10][11][12][13]16,19]. The next generation telecommunication systems have a great demand for compact devices which made miniaturization an important criteria.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Band Pass Filter in Substrate Integrated WaveguideTechnology

Parameswaran¹,

Athira²,

Raghavan³

2018

IJET

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“…SIW structures, which act as highpass filters, are used in filter design due to their mentioned properties [5]. Different structures are used to obtain a bandpass filter in Manuscript received 11 August, 2020; accepted 23 December, 2020. some of the previous studies, such as microstrip structure [5], air-filled structure [6], symmetric inductive post structure [7], resonator structure [8], bent structure [9], Low Temperature Co-fired Ceramics (LTCC) structure [10], Through-Silicon Via (TSV) structure [11], cross-coupled structure [12], perturbed circular cavity structure [13], Fourier-varying via-vole walling structure [14], and GaAsbased chip filter structure [15], [16]. As the microstrip structure is easier, cheaper, and more comprehensible, it is preferred for the lowpass filter section of the bandpass filter [17].…”

Section: Introductionmentioning

confidence: 99%

Analysis, Design, and Actual Fabrication of a Hybrid Microstrip-SIW Bandpass Filter Based on Cascaded Hardware Integration at X-Band

Guvenli

Yenikaya

Seçmen

2021

ELEKTRON ELEKTROTECH

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In this paper, the Microstrip-Substrate Integrated Waveguide (M-SIW) bandpass filter is designed, simulated, and fabricated based on the theoretical analysis. The Substrate Integrated Waveguide (SIW) highpass filter and the microstrip lowpass filter are combined in a hybrid design to achieve the M-SIW bandpass filter in the X-band. This design is more comprehensible and easier to achieve a bandpass filter at a desired frequency. The SIW highpass filter and the microstrip lowpass filter are connected in series to achieve the bandpass filter. To the measured results of the fabricated M-SIW bandpass filter, the center frequency is 10.20 GHz and the bandwidth is 2.40 GHz. When the analytical and measurement results are compared, the frequency change in the cut-off frequency is 6.02 % and the frequency change in the bandwidth is 8.74 %. It is generally seen that analytical, simulation, and measurement results are compatible with each other. The M-SIW bandpass filter can be broadly used in radar, Worldwide Interoperability for Microwave Access (WiMAX), and satellite technologies. The filters are simulated in Computer Simulation Technology (CST) Studio Suite.

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“…2(a), consisting of a shunt inductance and two series capacitances as previously illustrated in [2], [6] and [7]. The values of the equivalent reactive components of the T-section are function of the diameter of posts and position inside the SIW waveguide, and can be extracted using the methods given in [2] and [6]. In particular for post diameters much smaller than the waveguide width ( in Fig.…”

Section: Introductionmentioning

confidence: 99%

Novel Phase Shifter Design Based on Substrate-Integrated-Waveguide Technology

Yang

Ettorre

Sauleau

2012

IEEE Microw. Wireless Compon. Lett.

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A novel phase shifter is proposed based on a substrate-integrated-waveguide (SIW) technology. It consists of several phase channels made by SIW resonators loaded with extra metallic posts. These metallic posts act as inductive posts controlling the resonant frequency of the SIW resonators. Circular slots on the upper plate of the SIW structure are used to selectively disconnect these inductive posts from the upper plate of the structure to tune the resonant frequency. It is shown that by properly controlling the resonant frequency in each channel, the phase gradient between adjacent channels exhibits a linear phase progression at the operating frequency. As a result, a novel phase shifter is obtained accordingly. Based on this approach, a phase shifter prototype made by five channels is proposed to validate the concept. Each channel consists of three SIW resonators which form a third-order bandpass filter for impedance matching. Experimental results demonstrate that the resulting phase shifter has more than 10% fractional bandwidth for a 15 phase gradient across adjacent channels with a phase error of 5 . The insertion loss is less than 1.5 dB in the considered band.The experimental results agree well with full-wave simulations. The proposed phase shifter is expected to be easily implemented with active components.Index Terms-Filter, phase shifter, substrate integrated waveguide (SIW).

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Investigation of Symmetry Influence in Substrate Integrated Waveguide (SIW) Band-Pass Filters using Symmetric Inductive Posts

Cited by 10 publications

References 2 publications

Miniaturized Band Pass Filter in Substrate Integrated WaveguideTechnology

Miniaturized Band Pass Filter in Substrate Integrated WaveguideTechnology

Analysis, Design, and Actual Fabrication of a Hybrid Microstrip-SIW Bandpass Filter Based on Cascaded Hardware Integration at X-Band

Novel Phase Shifter Design Based on Substrate-Integrated-Waveguide Technology

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