Compact Dual-Band Siw Bandpass Filter Using CSRR and DGS Structure Resonators

Soundarya, Gopalakrishnan; Gunavathi, N.

doi:10.2528/pierl21091301

Cited by 9 publications

(6 citation statements)

References 22 publications

(23 reference statements)

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“…Any analytical method can be used to calculate the dimensions of the CSRR at the specified frequency. Many approaches have been presented in past research to find the dimensions of the split rings [17,18]. The optimal dimensions are selected using a parametric analysis.…”

Section: Band Pass Filter Designmentioning

confidence: 99%

“…With the combination of SIW technology and CSRR on a single planar substrate, it is possible to create a simple band pass filter with an elevated quality factor for wide band communication applications [16]. It has been confirmed that when CSRRs are etched on the radiating part of planar communication, signal transmission is excluded in the surrounding area of their resonant frequency, avoiding unwanted signals [17]. Various methods have been presented in previous research, and it is possible to predict the resonant frequency of a CSRR structure from its geometrical parameters [18].…”

Section: Introductionmentioning

confidence: 99%

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Dual-Band Siw Slot Array Filtering Antenna for X and Ku Band Applications

Maruti¹,

Kishore²

2022

PIER Letters

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In this work, a substrate integrated waveguide slot array filtering antenna for dual band applications is presented. This novel design performs the functions of both a filter and an antenna simultaneously. The main intention of this work is to design a circuit that separates the frequencies in a dual band operation. The antenna is designed as an integration of two parts; the upper part operates at 10.2 GHz while the lower part operates at 16.4 GHz. In each part, an array of five longitudinal slots is incorporated, as well as a SIW antenna with complementary split ring resonators that operate as a band pass filter at the front end. Each slot array antenna is designed for a specific frequency band, and its function depends upon its preceding band pass filter. The two band pass filters allow only signals from the frequency bands for which they are designed to their corresponding slot array antennas. This technique, along with properly spaced metal vias of the SIW antenna, prevents any leakage and hence reduces interference in dual band operation. Both the band pass filter and the antenna can be built on the same planar board. The antenna is fed through a microstrip to SIW taper transition. CST Microwave Studio software is used for optimization and simulation of the structure. The antenna was built on an RT Duroid 5880 and tested to investigate practical validation. The antenna has a bandwidth of 1.9 GHz, from 9.2 GHz to 11.1 GHz in the X-band, and 2.2 GHz, from 15.6 GHz to 16.9 GHz in the Ku band. The gain pattern is unidirectional in nature and has low side lobe levels of −24 dB and −21 dB at resonant frequencies. A noticeable difference that is greater than 20 dB between co-polarization and cross-polarization is observed. The dimensions of the antenna are 56 mm × 32 mm × 0.508 mm. There is an excellent similarity between the simulated and measured results.

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Section: Band Pass Filter Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dual-Band Siw Slot Array Filtering Antenna for X and Ku Band Applications

Maruti¹,

Kishore²

2022

PIER Letters

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“…In [13], a filter with dual passbands using tapered SRRs which consist of asymmetric shape square rings with interlinking is developed. In [14], a bandpass filter with CSRR and defected ground structures using substrate-integrated waveguide technology is proposed. In [15], a dual bandpass filter based on coupling between two identical SRRs and a CSRR is presented.…”

Section: Introductionmentioning

confidence: 99%

“…Rectangular stubs with a meander line were used in the design. The filters mentioned are large [12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Metamaterial-Inspired Compact Single and Multiband Filters

Sowjanya¹,

Vakula²

2022

Adv. sci. technol. eng. syst. j.

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In this paper, Compact bandpass filters have been designed. A single bandpass filter was designed using novel triple concentric complementary split-ring resonators placed along the microstrip line in the ground plane. Gaps and via were placed on the microstrip line to control electromagnetic characteristics, resulting in a single bandpass filter. In turn, spiral resonators were attached to the microstrip transmission line at the gaps in the transmission line to obtain a compact dual passband filter. Stepped impedance microstrip line and Tshaped stubs were attached to the microstrip line in between spiral resonators. The structure designed resulted in a Triple bandpass filter. A fractional bandwidth of 3% was achieved at the center frequency of 3GHz. The filter had a 1.5dB insertion loss which is the minimum value in the operating frequency band. The filter resonance frequency was 1.32 GHz and 2.47GHz which have a fractional bandwidth of 7.5% and 4.85% respectively and the corresponding insertion loss was 1.3dB and 1.8dB respectively. The triple bandpass filter had a fractional bandwidth of 1. 16%, 11.4%, and 1.86%, centered at 1.29 GHz, 2.27 GHz, and 3.21GHz with 1.6dB, 1.3dB, and 1.8 dB insertion loss at the respective frequencies. The proposed bandpass filters are useful for GPS, WLAN, WiMAX, and radar applications.

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“…From literatures, defected ground structure (DGS) is used in RF and microwave circuit designs such as antennas [20], [21], filters [22], [23], power amplifiers [24] and power dividers [25]. The use of the DGS in these circuits has different purposes, such as harmonics or frequency suppression [20], [22], [23], [25], wideband performance [21], circuit miniaturization [22], [23], [25] and load matching network [24]. Therefore, in this paper, a DGS is proposed for the reconfigurable bandstop to allpass filter for mm-wave communications such as 5G technology in the 26 or 28 GHz band (K-band).…”

mentioning

confidence: 99%

Reconfigurable bandstop to allpass filter using defected ground structure in K-band for millimeter-wave communications

Othman

Shairi

Majid

et al. 2022

IJEECS

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In this paper, a reconfigurable bandstop to allpass filters using Defected Ground Structure (DGS) in K-Band for millimeter-wave communications is proposed. Mathematical analysis of the DGS is discussed in this paper for the bandstop and allpass responses. The reconfigurable filter is performed by using an ideal switch with open circuit and short circuit conditions on DGS at several locations. Hence, two filter designs with different DGS are investigated for their performance in both simulation and measurement. As a result, the ideal switch at location S3 gives the best performance for both DGSs with a narrowband bandstop response and a wideband allpass response with insertion loss of less than 1 dB and return loss of more than 10 dB at the 26 GHz band. Hence, the proposed reconfigurable filter is suitable for millimeter-wave front-end communications.

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Compact Dual-Band Siw Bandpass Filter Using CSRR and DGS Structure Resonators

Cited by 9 publications

References 22 publications

Dual-Band Siw Slot Array Filtering Antenna for X and Ku Band Applications

Dual-Band Siw Slot Array Filtering Antenna for X and Ku Band Applications

Metamaterial-Inspired Compact Single and Multiband Filters

Reconfigurable bandstop to allpass filter using defected ground structure in K-band for millimeter-wave communications

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