Design of an E-Shaped Microstrip GPS Antenna Operating at L1 Frequency

Yıl 2014, Cilt: 19 Sayı: 1, 15 - 26, 01.04.2014

Sertaç Erdemir Asım Egemen Yılmaz

Öz

In this study, the E-shaped microstrip antenna, which has been widely used as a special type of microstrip antenna in the recent years along with the developing technology, is analyzed. Two parallel slots are added to the patch of antenna and these slots are integrated with the resonance frequencies and the bandwidth. The optimization of the antenna is assured with the parameterization of slot dimensions, with the length of 20 mm and the width of 47 mm. The high-gain E-shaped microstrip GPS antenna, which operates at L1 frequency (1575.42 MHz) and covering the 1550 MHz to 1605 MHz band, has been designed. Consequently, E-shaped microstrip antenna design, resonating at civilian GPS frequency (L1, 1575.42 GHz) with 3.5% bandwidth, was obtained; and its specifications were extracted by means of the simulations using the CST-MWS software package

Anahtar Kelimeler

E-Shaped Antenna, Microstrip Antenna, Patch Antenna, Dual Parallel Slots, GPS

L1 Frekansında Çalışan E-Şekilli Mikroşerit GPS Anteni Tasarımı

Öz

Bu çalışmada, son yıllarda gelişen teknoloji ile birlikte mikrodalga antenleri içerisinde kullanım alanı oldukça yaygınlaşan mikroşerit antenlerin özel bir çeşidi olan E-şekilli mikroşerit anten yapısı incelenmiştir. E-şekilli mikroşerit antende, anten yamasına iki paralel yarık eklenmiş, bu yarıklar rezonans frekansları ve bant-genişliği ile ilişkilendirilmiştir. Yarık boyutları, uzunlukları 20 mm ve genişlikleri 47 mm olacak şekilde parametrize edilerek antenin optimizasyonu sağlanmıştır. L1 frekansında çalışan (1575.42 MHz) ve 1550 MHz – 1605 MHz frekans bandını kapsayan yüksek kazançlı E-şekilli mikroşerit GPS anteni tasarlanmıştır. Sonuç olarak, GPS uygulaması için %3.5’lik bant-genişliğine sahip, sivil GPS frekansında (L1, 1575.42 GHz) rezonansa giren E-şekilli mikroşerit anten tasarımı elde edilmiş ve spesifikasyonları CST-MWS yazılımında yapılan simülasyonlar ile tespit edilmiştir

Anahtar Kelimeler

E-Şekilli Anten, Mikroşerit Anten, Yama Anten, Çift Paralel Yarık, GPS

Kaynakça

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• Makale 22.04.2013 tarihinde alınmış, 19.11.2013 tarihinde düzeltilmiş, 25.02.2014 tarihinde kabul edilmiştir.