Browsing by Author "Durak, T."

Now showing 1 - 7 of 7

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An antenna for implanted device systems
(IEEE, 2017) Zincircioglu, Emircan; Pekdemir, İsmail; Rzayew, Rafiq; Ilıksu, Emre; Dede, Merve; İmeci, Ş. T.; Durak, T.; Zincircioglu, Emircan; Pekdemir, İsmail; Rzayew, Rafiq; Ilıksu, Emre; Dede, Merve
In this study, we designed and simulated an embedded spiral-shaped microstrip patch antenna for medical biotelemetry applications. Important design parameters were studied to understand their effect on the antenna performance. The antenna is able to download patient's health information from the implanted devices. Sonnet Suite, a 3-D Planar Electromagnetic simulation tool is used for simulations. Simulated antenna has maximum gain of 6.6 dB with -13 dB input match at 8.87 GHz. The antenna impedance is easily adjusted by controlling the inner stub length.
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Design and simulation of antenna with defected ground plane
(IEEE, 2016) Gurelli, Umur Can; Dindar, Sinan; Balci, Merve; Rizeli, Dilara; İmeci, T.; Durak, T.; Gurelli, Umur Can; Dindar, Sinan; Balci, Merve; Rizeli, Dilara
In this work a patch antenna having defected ground plane is designed and simulated. Design includes two dielectric layers and some modifications at the top layer such as having a slit and a slot. Simulation results are included and discussed. Results showed that electric field total gain is 6.5 dB while input match is -18.34 at 4.72 GHz.
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Dual-band gemini-shaped microstrip patch antenna for C-band and X-band applications
(IEEE, 2017) Djengomemgoto, Gerard; Altunok, Reha; Karabacak, Cem; İmeci, Ş. T.; Durak, T.; Djengomemgoto, Gerard; Altunok, Reha; Karabacak, Cem
In this paper, a novel single-layer Gemini-shaped patch antenna with dual-band characteristics is presented. The proposed patch antenna, with design operating frequencies of 6.53 GHz and 8.62 GHz, is targeted for applications in C-band and X-band. More importantly, the Gemini-shaped microstrip patch antenna exhibits a theta polarized radiation pattern with gains of 6.036 dBi and 9.556 dBi with corresponding reflection coefficients of -18.69 dB (VSWR = 1.263) and -24.31 dB (VSWR = 1.129) at 6.53 GHz and 8.62 GHz, respectively. The measurements of the fabricated patch antenna corroborate the simulation results obtained in Sonnet Suites version 16.52. This dual-resonance antenna, with comparatively high gain performance, can be easily integrated into systems for satellite and radar communications.
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Dual-fed rectangular ring slotted patch antenna
(IEEE, 2016) Bektas, Mert; Akbal, K. Onur; Guzekin, Pamir; Tarakoglu, Engin; İmeci, Taha; Durak, T.; Bektas, Mert; Akbal, K. Onur; Guzekin, Pamir; Tarakoglu, Engin; İmeci, Taha
In this work, a dual-fed rectangular ring slot patch antenna is designed and simulated. Compared to a common microstrip patch antennas, designed and simulated dual frequency patch antenna offers size reduction and higher gain. Simulation results showed input match of -11.77 dB at 4.1214 GHz and theta-polarized electric field gain of 8.26 dB at Θ = ± 20° at 4.1214 GHz.
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F-Shaped Monopole Antenna
(IEEE, 2017) İncesulu, Hakan; Ulutaş, Gül; Bilge, Hakan; İmeci, Ş. T.; Durak, T.; İncesulu, Hakan; Ulutaş, Gül; Bilge, Hakan
In this paper, effects of F antenna arm length on the frequency, gain and s11 values are studied. The arms and the total length of the F determine the resonance frequency of the antenna. The inverted F shaped antennas are used in the cell phones. The outcome showed that the middle length of the antenna determines the input match and gain of the antenna. We achieved the highest gain of 6.32 dBi at 4.21 GHz frequency with input match of -16.91 dB.
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Rectangular slotted square patch antenna with a floating ring
(IEEE, 2017) Öztürk, Yasin Anıl; Sarı, Uğur; İmeci, Ş. T.; Durak, T.; Öztürk, Yasin Anıl; Sarı, Uğur
In this paper, a rectangular slotted square patch antenna with a floating ring and single point feed is presented. The proposed patch antenna, when optimized, achieved the highest gain of 7.17 dB at 7.12 GHz with -6.97 dB input match. Which presented theta polarized radiation pattern. Simulations conducted by changing the size of inner ring shape and high gains were observed between the frequencies of 7.08 and 7.13 GHz.
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Serration effect on gain for microstrip E-Shape patch antenna
(IEEE, 2016) Metin, Alp; Delikanli, Demet; Kaya, Ismail; Keskiner, Selim; Imeci, Taha; Durak, T.; Metin, Alp; Delikanli, Demet; Kaya, Ismail; Keskiner, Selim; Imeci, Taha
In this work we focus on the effect of serration on E-Shape patch antennas. We simulated 2 different E-shape antennas with the same length. The first one has serrated edge and the second one doesn't have. Then we compared the results. Sonnet Suites is used as a simulation program. At 4.22 GHz -15.2 dB return loss and 6.237 dB gain were observed.