GSM-1800 ve GPS uygulamaları için çift bantlı ve çift modlu yarıklı halka mikroşerit yama anten

Yıl 2023, Cilt: 38 Sayı: 1, 547 - 556, 21.06.2022

Cihan Dogusgen Erbas

https://doi.org/10.17341/gazimmfd.740475

Öz

Bu çalışmada, toprak düzleminde 6 eşit dikdörtgensel yarık bulunduran özgün, çift bantlı ve çift modlu bir halka mikroşerit yama anten tasarlanmış, üretilmiş ve incelenmiştir. Ardışık yarıklar arasındaki açı 60ᴼ değerindedir. Anten, GSM-1800 (1,710–1,880 GHz) ve L2 frekans bandında çalışan GPS (1,215–1,240 GHz) uygulamaları için aynı anda kullanılabilirdir ve bahsedilen uygulamalar için sırasıyla TM21 ve TM11 modlarında çalışmaktadır. Ölçülen -10 dB dönüş kaybına ait oransal bant genişlikleri GSM-1800 ve GPS frekans bantları için sırasıyla %33,510 (1,540–2,160 GHz) ve %15,130 (1,100–1,280 GHz) biçimindedir. Anten GSM-1800 uygulaması için konik ışıma örüntüsüne sahipken GPS uygulaması için tek yönlü ışıma örüntüsüne sahiptir. 1,227 GHz çalışma frekansı için ölçülen maksimum kazanç değeri 7,410 dBi ve1,800 GHz çalışma frekansı için bu parametre 5,600 dBi değerindedir. GPS uygulaması için anten dairesel polarizasyona sahiptir ve 3 dB eksensel orana ait oransal bant genişliği %4,590 (1,192–1,248 GHz) değerindedir. Ölçümler benzetim sonuçlarıyla uyumludur.

Anahtar Kelimeler

Dikdörtgensel yarık, , GPS, GSM-1800, halka mikroşerit yama anten, TM modu

Destekleyen Kurum

Yok

Proje Numarası

Yok

Teşekkür

Yok

Kaynakça

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