MICROSTRIP PATCH ANTENNA DESIGN WITH ENHANCED RADIATION EFFICIENCY FOR 5G 60 GHZ MILLIMETER-WAVE SYSTEMS

Abstract

In this paper, a wideband, high-gain microstrip patch antenna design for 60 GHz applications is presented. The chosen substrate material is Rogers RT 5880, with a thickness of 1.6 mm, a relative permittivity of 2.2, and a loss tangent of 0.0009. Initially, a simple rectangular patch antenna is designed. To address the challenges of low gain and low radiation efficiency, two rectangular parasitic elements are introduced. These parasitic elements interact with the main radiator, resulting in improved gain and radiation efficiency. In the final step, an extended ground plane structure is adopted to further enhance return loss, radiation efficiency, and gain. The proposed antenna achieves a high gain of 13.10 dBi and a maximum radiation efficiency of 90% with a compact size of 13.6 × 10.6 mm2. For bandwidth calculations, given that the 60 GHz frequency band is known for its challenging propagation environment, the -15 dB criteria is chosen instead of the commonly used -10 dB criterion. According to this -15 dB criterion, the antenna exhibits wideband behavior spanning from 55 to 65 GHz, offering animpressive impedance bandwidth of 10 GHz. This design demonstrates significant potential for 60 GHz applications.

Keywords

• patch antenna
• 60 GHz
• enhanced radiation efficiency
• high gain
• extended ground structure

60 GHz Milimetre Dalga Sistemleri için Artırılmış Işıma Verimliliği ile Yüksek Kazançlı Mikroşerit Yama Anten Tasarımı

Abstract

Bu makalede, 60 GHz uygulamaları için geniş bantlı, yüksek kazançlı bir mikroşerit yama anten tasarımı sunulmaktadır. Seçilen alttabaka malzeme 1.6 mm kalınlığında, 2.2 bağıl geçirgenliğine ve 0.0009 kayıp tanjant değerine sahip Rogers RT 5880'dir. İlk olarak, basit bir dikdörtgen yama anten tasarlanmıştır. Düşük kazanç ve düşük ışıma verimliliği zorluğuyla başa çıkmak için iki adet dikdörtgen parazitik eleman tanıtılmıştır. Bu parazitik elemanlar, ana ışıma elemanıyla etkileşime girer ve kazanç ile ışıma verimliliğini artırır. Son adımda ise geri dönüş kaybı, ışıma verimliliği ve kazancı daha da artırmak için genişletilmiş bir toprak düzlemi yapısı benimsenmiştir. Önerilen anten, 13.6 × 10.6 mm²'lık kompakt boyutuyla 13.10 dBi ’lik yüksek kazanç ve %90’lık maksimum ışıma verimliliği elde etmektedir. Bant genişliği hesaplamaları için, 60 GHz frekans bandının zorlu yayılım ortamı göz önünde bulundurularak, ışıma verimliliği kriteri olarak kullanılan -10 dB kriteri yerine -15 dB kriteri tercih edilmektedir. Bu -15 dB kriterine göre, anten 55 ila 65 GHz aralığını kapsayan geniş bantlı bir davranış sergileyerek 10 GHz'lik etkileyici bir empedans bant genişliği sunmaktadır. Bu tasarım, 60 GHz uygulamaları için önemli bir potansiyel sunmaktadır.

Keywords

• Yama anten
• 60 GHz
• Artırılmış ışıma verimliliği
• Yüksek kazanç
• Genişletilmiş toprak yapısı

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