Journals / Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi / 2020 / Cilt: 35 - Sayı: 3

Size-reduced printed log-periodic dipole antenna for wireless communication applications

Kablosuz haberleşme uygulamaları için boyutu küçültülmüş basılı log-periyodik çift kutuplu anten

Pages
1631–1646
Publication Date
2020-04-07
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

According to measurement results of the manufactured structure, the antenna is observed to have return loss better than 10 dB, a quite stable/low variation gain as 4.75 dBi ± 0.75 dBi and compact size as compared to similar studies in literature at a wideband operating frequency of 0.86 GHz and 2.5 GHz, which can be used in several wireless communication systems.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, it is proposed a printed log-periodic dipole antenna (LPDA) for wireless communication applications, which consists of dipoles having reduced dimensions by using first order semicircle structures.
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Key Findings & Data:The bandwidth is increased by adding small rectangular patches to initial part of antenna feed line and putting slots to the end.
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Conclusion & Impact:According to measurement results of the manufactured structure, the antenna is observed to have return loss better than 10 dB, a quite stable/low variation gain as 4.75 dBi ± 0.75 dBi and compact size as compared to similar studies in literature at a wideband operating frequency of 0.86 GHz and 2.5 GHz, which can be used in several wireless communication systems.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:boyutu küçültülmüş anten · geniş bantlı anten · Log-periyodik çift kutuplu anten

Abstract

In this study, it is proposed a printed log-periodic dipole antenna (LPDA) for wireless communication applications, which consists of dipoles having reduced dimensions by using first order semicircle structures. The bandwidth is increased by adding small rectangular patches to initial part of antenna feed line and putting slots to the end. A size reduction of about 14% is obtained in the proposed antenna in comparison with the standard printed LPDA with the usage of semicircle structures. In addition to size reduction while semicircle structures also increase the upper band of the antenna operating frequency to 2.5 GHz to cover wireless communication frequencies of Bluetooth and 2.4 GHz Wi-Fi, rectangular slot decreases to the lower band to around 0.86 GHz to include RFID and GSM 900 frequencies. According to measurement results of the manufactured structure, the antenna is observed to have return loss better than 10 dB, a quite stable/low variation gain as 4.75 dBi ± 0.75 dBi and compact size as compared to similar studies in literature at a wideband operating frequency of 0.86 GHz and 2.5 GHz, which can be used in several wireless communication systems.

Özet

Bu çalışmada, kablosuz haberleşme uygulamaları için boyutları birinci dereceden yarı çember yapılar kullanılarak azaltılmış çift kutuplardan oluşan bir basılı log-periyodik çift kutuplu anten (LPÇKA) önerilmiştir. Antenin besleme hattının başlangıcına dikdörtgen küçük yamalar eklenmesi ve sonuna dikdörtgen oyuklar açılarak bant genişliği arttırılmıştır. Yarı çemberlerin kullanımı ile standart basılı LPÇKA’in boyutlarına göre önerilen antende yaklaşık %14 oranında bir azalma elde edilmiştir. Yarı çember yapılar, boyut küçültmenin yanında antenin çalışma frekansının üst bandını Bluetooth ve 2,4 GHz Wi-Fi kablosuz haberleşme frekanslarını da kapsayacak şekilde 2,5 GHz’e çıkarmış olup dikdörtgen yarık ise alt bandı RFID ve GSM 900 frekanslarını içerecek şekilde 0,86 GHz seviyelerine çekmiştir. Üretilen yapının ölçüm sonuçlarına göre, antenin birçok kablosuz haberleşme uygulamasında kullanılabilecek şekilde 0,86 GHz ile 2,5 GHz aralığı gibi geniş bir çalışma frekansında 10 dB’den iyi geri dönüş kaybına, 4,75 dBi ± 0,75 dBi gibi oldukça kararlı/düşük değişimli bir anten kazancına ve literatürdeki benzer çalışmalara göre daha küçük boyutlara sahip olduğu görülmüştür.

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Cite This Article

OZGONUL, M. C., SEÇMEN, M. (2020). Size-reduced printed log-periodic dipole antenna for wireless communication applications. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, Cilt: 35 - Sayı: 3, 1631–1646. https://ajindex.com/articles/19785

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