Patch modification and slot arrangement of microstrip antenna for improving the axial ratio

Alam, Syah; Sugati, Indra; Ningsih, Yuli Kurnia

doi:10.1109/bcwsp.2017.8272553

Cited by 7 publications

(6 citation statements)

References 12 publications

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“…In addition, the size of the microstrip patch is associated significantly with the operating frequency [25,26]. This can also be observed from (1) to (7) for rectangular microstrip development [24].…”

Section: Microstrip Antenna Developmentmentioning

confidence: 74%

“…However, in this research, rectangular shape is emphasized as it has the widest beamwidth if compared to other shapes. Furthermore, this rectangular shape is easier to be modified when different operating frequencies are utilized [24]. In addition, the size of the microstrip patch is associated significantly with the operating frequency [25,26].…”

Section: Microstrip Antenna Developmentmentioning

confidence: 99%

“…As mentioned in [24], rectangular microstrip antenna width, W is obtained through (1), where Co, fo, and represent the speed of light, fundamental frequency applied, and permittivity of the substrate, respectively. The substrate chosen in this research is RO 4350 with permittivity value, = 3.48, referred to Gabriel Database built-in SEMCAD X.…”

Section: Microstrip Antenna Developmentmentioning

confidence: 99%

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SAR distribution of non-invasive hyperthermia with microstrip applicators on different breast cancer stages

Ling

Lias

Buniyamin

et al. 2021

IJEECS

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<span>This paper presents the microstrip antenna with different applied frequencies used as a non-invasive hyperthermia applicator. This non-invasive hyperthermia applicator is introduced to clarify the sufficient heat distribution on the treated tissue for different breast cancer stages. 57 mammogram breast cancer images from early-stage to stage-3 are analyzed to obtain the required penetration depth and focus position distance. Then, the simulation-based experiment is carried out to observe the heating distribution on different stages of cancer with two different operating frequencies; 915MHz and 2450MHz. Also included in this paper is the prediction on the period for hyperthermia treatment planning execution. Based on the results, various penetration depths are obtained when different operating frequencies are applied. 915MHz antenna showed better results when compared to 2450MHz, where microstrip applicator with 915MHz is able to heat cancer at stage-1, stage-2, and stage-3 with good penetration depth and focus position distance, while 2450MHz only performed well in early-stage cancer. Meanwhile, different stages require various periods of time. From the results, the shortest period for hyperthermia execution simulated in the early-stage and then followed by stage-3, stage-2, and the longest period is in stage-1.</span>

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Section: Microstrip Antenna Developmentmentioning

confidence: 74%

Section: Microstrip Antenna Developmentmentioning

confidence: 99%

Section: Microstrip Antenna Developmentmentioning

confidence: 99%

See 1 more Smart Citation

SAR distribution of non-invasive hyperthermia with microstrip applicators on different breast cancer stages

Ling

Lias

Buniyamin

et al. 2021

IJEECS

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“…Penerapan sistem komunikasi Generasi ke empat (4G/LTE) menuntut kecepatan dalam proses transfer data dan konektivitas yang sangat tinggi, selain itu disisi perangkat penerima juga menjadi semakin kecil dan kompak. Dalam (Alam, S., Surjati, I., & Ningsih, Y. K., 2017), beberapa alokasi frekuensi tersebut adalah : DCS berlaku pada pita frekuensi (1710-1885 MHz), PCS pada pita frekuensi (1907.5-1912.5 MHz), UMTS pada pita frekuensi (1920, WLAN 2.4 GHz pada pita frekuensi (2400-2483.5 MHz), LTE 2,3 GHz. Berdasarkan (Kemenkominfo, 2014) Dalam proses pertukaran informasi pada sistem komunikasi nirkabel diperlukan suatu perangkat pengirim dan penerima salah satunya adalah antena.…”

Section: Pendahuluanunclassified

Realisasi dan Pengujian Antena Mikrostrip Array 4 Elemen dengan Polarisasi Melingkar untuk Aplikasi 4G/LTE

2018

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ABSTRAKPenelitian ini mengusulkan desain antena mikrostrip array empat elemen dengan polarisasi melingkar pada frekuensi kerja 2300 MHz untuk aplikasi 4G/LTE. Antena telah dirancang dan dipabrikasi menggunakan substrat jenis FR-4 Epoxy dengan nilai konstanta dielektrik (Ɛr) = 4.3, ketebalan substrat (h) = 1.6 mm dan loss tangen (tan δ) = 0.0265 dengan pencatu microstrip line. Polarisasi melingkar dengan axial ratio ≤ 3 dB dihasilkan dengan menggunakan metode truncated corner sedangkan untuk meningkatkan nilai gain digunakan metode array empat elemen. Dari hasil proses pengukuran diperoleh nilai koefisien refleksi sebesar -16.52 dB, VSWR sebesar 1.37 pada frekuensi kerja 2300 MHz dengan bandwidth yang diperoleh dari hasil pengukuran adalah 400 MHz (2050 MHz - 2450 MHz). Metode truncated corner berhasil menghasilkan polarisasi melingkar dengan nilai axial ratio 1.745 dB dan berhasil menghasilkan nilai gain sebesar 9.04 dB pada frekuensi kerja 2300 MHz untuk aplikasi LTE.Kata kunci: Antena, mikrostrip, koefisien refleksi, array, truncated corner ABSTRACTThis research proposed a four-element microstrip array antenna design withcircular polarization at a working frequency of 2300 MHz for 4G / LTEapplications. The antenna has been designed and fabricated using a FR-4 Epoxy substrate with a dielectric constant value (Ɛr) = 4.3, substrate thickness (h) = 1.6 mm and tangent loss (tan δ) = 0.0265 with microstrip line feeding. The circular polarization with axial ratio ≤3 dB was generated using the truncated corner method while for increasing the gain value used the four element array method. From the result of the measurement process, the reflection coefficient value is obtained -16.52 dB, VSWR of 1.37 at 2300 MHz working frequency with bandwidth obtained from the measurement result is 400 MHz (2050 MHz - 2450 MHz). The truncated corner method succeeded in generating a circular polarization with the axial ratio of 1.745 dB and succeeded to obtain the gain of 9.04 dB at work frequency of 2300 MHz for LTE application. Keywords: Antena, microstrip, reflection coefficient, array, truncated corner

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“…Polarization loss may result due to the misalignment in the signal and the receiving antenna. To solve this problem we can used microstrip antenna with circular polarization [5].…”

Section: Introductionmentioning

confidence: 99%

Design Of Array and Circular Polarization Microstrip Antenna For LTE Communication

et al. 2018

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This paper proposes a high gain microstrip antenna with circular polarization for LTE applications at a working frequency of 2300 MHz. Gain of antenna is optimized by using an array method with 4 elements arranged in plannar using feed line of 50 Ohm, 100 Ohm and 70.7 Ohm. The proposed antenna designed using FR-4 substrate with (Ɛr) = 4.3, substrate thickness (h) of 1.6 mm and loss tangent (tan δ) of 0.0265. Gain of antenna can be optimized by increasing the number of elements in the array of the antenna. Circular polarization can be obtained by cutting the edge of a rectangular patch antenna with an angle of 45 0 . From the simulation results obtained reflection coefficient value of -20.02 dB and VSWR of 1.22 at the working frequency of 2300 MHz. The gain of proposed microstrip antenna is 10.56 dB with an impedance bandwidth value of 714 MHz (1925( -2639. The proposed antenna obtained a circular polarization with axial ratio of 1.745 dB at working frequency of 2300 MHz. Array method with four elements increased the gain of antena until 45.07% compared to the single element antenna.

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Patch modification and slot arrangement of microstrip antenna for improving the axial ratio

Cited by 7 publications

References 12 publications

SAR distribution of non-invasive hyperthermia with microstrip applicators on different breast cancer stages

SAR distribution of non-invasive hyperthermia with microstrip applicators on different breast cancer stages

Realisasi dan Pengujian Antena Mikrostrip Array 4 Elemen dengan Polarisasi Melingkar untuk Aplikasi 4G/LTE

Design Of Array and Circular Polarization Microstrip Antenna For LTE Communication

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