Mutual coupling reduction using coupling matrix based band stop filter

Tütüncü, Bilal

doi:10.1016/j.aeue.2020.153342

Cited by 12 publications

(6 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, three passing regions and two rejection regions are maintained in the simulated range from 0.1 GHz to 13 GHz. The filter is the two-port device, whose response is presented in terms of S parameters; S11 as the input port voltage reflection coefficient and S21 as the forward voltage gain (Tütüncü, 2020). The filter response according to simulated and measured results can be seen in Figure 2.…”

Section: Configuration and Response Of The Proposed Filtermentioning

confidence: 99%

Microstrip filters Based on Open Stubs and SIR for High Frequency and Ultra-Wideband Applications

Imeci

Herzegovina

Tütüncü

et al. 2021

JER is an international, peer-reviewed journal that publishes f

Self Cite

View full text Add to dashboard Cite

This paper includes two new microstrip filter configurations for high frequency and Ultra-Wide Band applications. The first proposed filter is a composition of four parallel open-circuited stubs connected by optimized fractal-structured microstrip line. The filter response is a combination of three passing regions, namely low pass from 0.1 GHz to 3 GHz, band-pass from 4.5 GHz to 9 GHz and high pass from 10.5 GHz to 13 GHz, separated by two rejection regions from 3 GHz to 4.5 GHz and 9 GHz to 10.5 GHz. Deep and sharp rejection regions reaching up to -44.6 dB with 40 % fractional bandwidth (FBW) are observed with a good electrical performance. Furthermore, with a comparative table, the advantages of this proposed BSF in terms of FBW, compactness and insertion loss are compared with recently reported related studies. Secondly a dual-band band pass filter implementing a Stepped-Impedance resonator (SIR) and a modified H-shaped structure is presented. This filter is designed to operate in a low pass region up to 3.58 GHz and a band pass region from 15.38 to 21.65 GHz, with a wide stopband region between 4.46 and 14.07 GHz. The simulated and measured results are in good agreement. Compared to its peers, the compact size and low price allow for a wide application of these filter configurations, while passing frequencies allow operation in the unlicensed frequency spectrum, which is popular for high-speed communication. Keywords: Microstrip Filter, Band Pass, Band Stop, Open Stubs, SIR.

show abstract

Section: Configuration and Response Of The Proposed Filtermentioning

confidence: 99%

Microstrip filters Based on Open Stubs and SIR for High Frequency and Ultra-Wideband Applications

Imeci

Herzegovina

Tütüncü

et al. 2021

JER is an international, peer-reviewed journal that publishes f

Self Cite

View full text Add to dashboard Cite

show abstract

“…In recent years, researchers have proposed various methods such as DGS [3][4][5][6][7][8], EBG [9][10], parasitic element [11][12][13], microstrip resonators [14][15][16][17][18][19][20], EMSS [21][22][23][24], FSS [25][26][27], metamaterial structure [28], coupling matrix based band stop lter [29], meander line [30][31] etc. to suppress the affect of MC between two patch antennas.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Soft Surface (EMSS) Integrated MIMO Antennas With Reduced Mutual Coupling And Cross-Polarization Radiation

Bhattacharjee¹,

Mandal²,

Ghosh³

2021

Preprint

View full text Add to dashboard Cite

For closely spaced microstrip antenna elements, Mutual Coupling (MC) is an inevitable phenomenon which degrades antenna performances like gain, radiation pattern, return loss, radiation efficiency etc. Lot of works have been done on the reduction of MC and published the results in the open literatures. This paper presents an approach to suppress MC between two closely spaced microstrip radiators. This is achieved by inserting properly designed EMSS structure between the radiating elements. This EMSS acts as an electrical wall between two rectangular patches and reduces mutual coupling up to 50 dB at resonance frequency of 4.35 GHz. In this attempt, Cross Polarization (XP) reduction of 12.5dB has also been achieved with a gain 5.40dBi for the proposed antenna. The centre to centre spacing between the antenna elements is taken as 22.1mm (0.32λ).The proposed MIMO antenna system can be used for satellite communication and radar system.

show abstract

mentioning

confidence: 99%

“…Decoupling network is another option for mutual coupling suppression [8][9][10][11][12][13][14]. These networks can be designed using lumped elements [8], [9] or distributed structures [10][11][12][13][14]. In [10], by studying the Y-matrix of coupled antennas, a novel dual-band decoupling network is presented.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Mutual Coupling Suppression Between Two Closely Placed Patch Antennas Using Higher-Order Modes

Qian

Gao

Sanz-Izquierdo

et al. 2023

IEEE Trans. Antennas Propagat.

View full text Add to dashboard Cite

This paper presents a novel method for decoupling two patch antennas. Instead of using the TM10 mode of a conventional patch, TM20 mode is utilized as the operation mode of the antenna. By loading stubs at the radiating edge of the patch, the resonance frequency of the TM20 mode is moved down to the same band as the original TM10 mode. Then the mutual coupling between two such patch antennas is suppressed simply by physical placement, even when they are placed extremely close to each other. Without using any extra decoupling elements, isolation is improved by up to 20 dB using this method. Furthermore, this method can also be applied to multi-element multi-input-multi-output (MIMO) array and dual-antenna system with different operating bands. The proposed method is verified with three different application scenarios, including a 2element MIMO array, a 2-antenna system with adjacent operating bands, and a 4-element MIMO array. Reasonable agreements between simulated and measured results can be observed, showing the advantages of simple structure, low cost, high isolation, and good radiation performance. Index Terms-Adjacent band, in-band, mutual coupling, MIMO, patch antenna.

show abstract

Mutual coupling reduction using coupling matrix based band stop filter

Cited by 12 publications

References 36 publications

Microstrip filters Based on Open Stubs and SIR for High Frequency and Ultra-Wideband Applications

Microstrip filters Based on Open Stubs and SIR for High Frequency and Ultra-Wideband Applications

Electromagnetic Soft Surface (EMSS) Integrated MIMO Antennas With Reduced Mutual Coupling And Cross-Polarization Radiation

Mutual Coupling Suppression Between Two Closely Placed Patch Antennas Using Higher-Order Modes

Contact Info

Product

Resources

About