Browsing by Author "Yenikaya, Sibel"

Now showing 1 - 8 of 8

Citation - WoS: 3
Citation - Scopus: 2
A Parallel Connected Hybrid Microstrip-Substrate Integrated Waveguide Bandstop Filter
(KAUNAS UNIV TECHNOLOGY, 2023) Kemal Guvenli; Sibel Yenikaya; Mustafa Secmen; Guvenli, Kemal; Yenikaya, Sibel; Secmen, Mustafa
This study presents an original parallel connected hybrid microstrip-substrate integrated waveguide (PCHMSIW) bandstop filter. A low-pass filter implemented on a microstrip structure and a SIW-based high-pass filter are connected in parallel to each other. In this way the aim is to obtain a bandstop filter in the novel hybrid design. The parallel connected hybrid microstrip-substrate integrated waveguide (PCHM-SIW) bandstop filter is synthesised simulated and produced. The effects of connecting filters in parallel are discussed. It is seen from the results of CST Studio Suite simulation that PCHM-SIW bandstop filter has a bandwidth of 2.85 GHz and a center frequency of 4.26 GHz. The frequency change rate of the center frequency between simulation and measurement is 7.02 % where it is just 3.76 % for the deviation in bandwidth. The results of the simulation and those of the measurement are close to each other. These results converge to ideal analytical results.
A review of substrate integrated waveguide (SIW) filter architecture and filter design technologies
(GAZI UNIV FAC ENGINEERING ARCHITECTURE, 2024) Kemal Guvenli; Sibel Yenikaya; Mustafa Secmen; Güvenli, Kemal; Yenikaya, Sibel; Seçmen, Mustafa
In this review article transmission line technologies are compared in terms of loss dimension production cost ease of integration and design complexity. The basic design stages of the Substrate Integrated Waveguide (SIW) filter which stands out with its advantages among transmission lines are given. Current studies using different SIW filter technologies have been examined in the literature. The quality factors of the examined SIW filters were calculated and a comparison was made between the applied techniques. In addition the methods applied in the literature to eliminate the harmonic and high mode effects that adversely affect the SIW filter performance are examined and the results are evaluated.
Citation - WoS: 5
Citation - Scopus: 3
Analysis- Design- and Actual Fabrication of a Hybrid Microstrip-SIW Bandpass Filter Based on Cascaded Hardware Integration at X-Band
(KAUNAS UNIV TECHNOLOGY, 2021) Kemal Guvenli; Sibel Yenikaya; Mustafa Secmen; Guvenli, Kemal; Yenikaya, Sibel; Secmen, Mustafa
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.
Citation - WoS: 1
Citation - Scopus: 1
Design and characterization of a circular ring monopole antenna and its MIMO configuration for sub-6 GHz- sub-7 GHz and mm-wave 5G applications
(IOP Publishing Ltd, 2024) Sanaa Iriqat; Sibel Yenikaya; Mustafa Secmen; Iriqat, Sanaa; Yenikaya, Sibel; Secmen, Mustafa
In this paper a circular ring monopole antenna along with its MIMO configuration for sub-6 GHz sub-7 GHz and mm-wave 5G applications is presented. The single element spans a wide range of frequencies in the sub-6 GHz and mm-wave regions including a triple-band covering 1.9-6 GHz 23.3-33.5 GHz and a super-wide band starting from 37.5 GHz. A two-element MIMO antenna derived from the single element has been developed to operate in both frequency regions. It meets the - 10 dB criterion with a bandwidth of 4.8 GHz ( 3.2 to 7.3 GHz) in the sub-6 GHz/sub-7 GHz spectrum. Additionally the antenna exhibits a super-wide band in the mm-wave region starting at 30.4 GHz. The design covers key bands such as n78 LTE band 46 n96 39 GHz band 41 GHz band and more assigned for 5G sub-6 GHz sub-7 GHz and mm-wave applications. Improved isolation from 12 dB to 18.5 dB is achieved through a simple decoupling line structure between elements. The proposed MIMO antenna ( 75 x 56.4 x 1.52 mm3) exhibits a peak gain of 9.8 dBi high isolation ( 18.5 dB) low envelope correlation coefficient ( ECC < 0.016 ) high diversity gain ( DG > 9.995) and efficiency (< 97%).
Citation - WoS: 1
Citation - Scopus: 7
Design and Implementation of Substrate Integrated Waveguide Filter to Work on X-Band and Ku-Band
(IEEE, 2018) Kemal Guvenli; Sibel Yenikaya; Mustafa Secmen; Guvenli, Kemal; Yenikaya, Sibel; Secmen, Mustafa; M Antyufeyeva; A Butrym
In this paper the microstrip to Substrate Integrated Waveguide(SIW) transition bandpass filter is designed and fabricated. It can be used in satellite communication 5G and radar technology. SIW waveguide conditions and bandpass filter-specific input loss method are used to obtain design parameters. The CST Microwave Studio simulation program was used to simulate the SIW filter with two symmetrical windows. After that the SIW filter was fabricated using the Roger 4003C. It is seen that the obtained simulation results and the measurement values are compatible with each other.
Design and production of ıntegrated compact M-SIW filter-patch antenna with out-of-band suppression for 5G applications
(PAMUKKALE UNIV, 2024) Kemal Guvenli; Sibel Yenikaya; Mustafa Secmen; Berkay Emin; Guvenli, Kemal; Yenikaya, Sibel; Emin, Berkay; Secmen, Mustafa
In this article the Integrated M-SIW (Microstrip-Substrate Integrated Waveguide) band-pass filter-patch antenna (IMBPF-PA) design with 5.90 GHz resonant frequency and the out-of-band suppression is presented produced and measured for 5G applications using the CST (Computer Simulation Technology) Studio Suite program. The out-of- band frequencies in the 1.50-12.00 GHz wide operating frequency region are suppressed in the BPIGF-PA design. The antenna gain increase in the simulation results of the filter-antenna compared to the patch antenna is 0.32% and the in-band frequency range increase is 22%. In the measurement the antenna gain increase was 0.78% and the in-band frequency range increase was 14.4%.
Citation - WoS: 12
Citation - Scopus: 17
Dual-Band 2 × 1 Monopole Antenna Array and Its MIMO Configuration for WiMAX Sub-6 GHz and Sub-7 GHz Applications
(Multidisciplinary Digital Publishing Institute (MDPI), 2024) Sanaa Iriqat; Sibel Yeni̇Kaya; Mustafa Seçmen; Iriqat, Sanaa; Yenikaya, Sibel; Secmen, Mustafa
This study introduces a cost-effective monopole antenna array and its MIMO configuration. The single element consists of a rectangular patch monopole featuring five circular slots at the center accompanied by two thin slots at the top offering a wide bandwidth (2–7.62 GHz) and a peak gain of 3.8 dBi. For gain improvement a 2 × 1 antenna array is demonstrated. This antenna array exhibits dual-band behavior, spans from 2 to 3.71 GHz and from 5.9 to 7.54 GHz, covers the 2.5 GHz band (2.3–2.7 GHz) a significant portion of the n78 band (3.3–3.71 GHz) and the n96 band (5.925–7.125 GHz), and is assigned to WiMAX sub-6 GHz and sub-7 GHz applications respectively. The antenna array achieves a peak gain of 6.47 dBi. Lastly a two-element MIMO configuration derived from the 2 × 1 array is designed. Implementing a defected ground structure (DGS) on the ground plane plays a crucial role in enhancing the isolation from 7 dB to 20 dB. The presented MIMO antenna covers the desired frequency bands of 2.5 GHz n78 and n96 with a peak gain of 7.5 dBi and high radiation efficiency (<99%) which qualifies it for WiMAX sub-6 GHz and sub-7 GHz applications. © 2024 Elsevier B.V. All rights reserved.
HİBRİT MİKROŞERİT-YTED BANT GEÇİREN FİLTRENİN X-BANT’TA TASARIMI VE OPTİMİZASYONU
(2022) Sibel Yenikaya; Mustafa SECMEN; kemal güvenli; Güvenli, Kemal; Yenikaya, Sibel; Secmen, Mustafa
Bu makalede X-Bant ’ta hibrit Mikroşerit-YTED (Yalıtkan Taban Entegreli Dalga Kılavuzu) bant geçiren filtrenin optimizasyon çalışması yapılmıştır. Yüksek geçiren bir YTED filtre ile alçak geçiren bir mikroşerit filtrenin seri entegrasyonuyla elde edilen hibrit bant geçiren filtrenin geometrisindeki asimetrik bölümler düzeltilmiştir. Optimizasyon çalışmasında CST (Computer Simulation Technology) Studio Suite simülasyon programındaki 5 farklı optimizasyon algoritma tekniği hibrit M-YTED bant geçiren filtreye uygulanmıştır. Filtreye uygulanan bu tekniklerin sonuçları karşılaştırılmalı olarak verilmiştir. Metotlar karşılaştırıldığında geçiş bandındaki S11 değerleri toplamının en düşük değerde olması nedeniyle Parçacık Sürü Optimizasyon Algoritması seçilmiştir. Filtrenin w4 parametresinin değeri 6 165 mm olarak elde edilmiştir. Filtrenin kalite faktörü optimizasyon çalışmasıyla Guvenli ve diğ. (2021)’nin çalışmasına göre 3 21 kat artırılmıştır. Hibrit Mikroşerit-YTED bant geçiren filtrenin geçiş bandı [ω1-ω2] 7 60 GHz ile 8 40 GHz frekans aralığında filtrenin merkez frekansı (ω0) 7 90 GHz filtrenin bant genişliği de 0 80 GHz (%10 01) olacak şekilde tasarlanmıştır. M-YTED bant geçiren filtrenin simülasyon sonuçlarına göre merkez frekansı 8 15 GHz ve bant genişliği 0 92 GHz'dir (%11 29). Analitik ve simülasyon sonuçları karşılaştırıldığında analitik sonuçlara göre simülasyon merkez frekansındaki frekans değişimi %1 98 ve bant genişliği değişimi %15’dir. Analitik ve simülasyon sonuçlarının birbiriyle uyumlu olduğu görülmektedir.