Details

Autor(en) / Beteiligte

• Yu, Pengfei
• Wei, Changning
• Sun, Liguo
• Ji, Zhuoqiao
• Yu, Fan
• Xu, Ke

Titel

Millimeter‐wave end‐fire dual‐polarized frequency scanning antenna using LTCC technology

Ist Teil von

• Electronics letters, 2024-05, Vol.60 (10), p.n/a

Ort / Verlag

Wiley

Erscheinungsjahr

2024

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• This letter proposes a millimeter‐wave dual‐polarized (DP) end‐fire frequency scanning antenna utilizing low temperature co‐fired ceramic (LTCC) technology. The antenna features DP radiating elements, each comprising a quasi‐Yagi antenna for horizontal polarization (H‐pol) and a pyramidal horn antenna for vertical polarization (V‐pol). These elements are excited via a mode‐composited transmission line (MCTL), integrating substrate integrated coaxial line (TEM mode) with substrate integrated waveguide (TE10 mode). To mitigate phase imbalances between polarizations during beam scanning, a delay line is embedded in each quasi‐Yagi element, ensuring consistent scanning ranges for the two polarizations. Furthermore, the implementation of amplitude weighting in the feeding networks contributes to the enhancement of antenna efficiency. A 1 × 8‐element prototype was fabricated and its performance is assessed. The results show closely matched beam scanning ranges for the two polarizations (±28° for H‐pol and −30° to +34° for V‐pol) across the 26–29 GHz frequency band, with a measured maximum peak gain exceeding 9.2 dBi for both polarizations. The proposed design emerges as a promising candidate for compact mmW frequency scanning front‐end antenna systems. This letter detailed an mmW end‐fire dual‐polarized frequency scanning antenna (FSA) featuring a quasi‐Yagi and pyramidal horn antenna combination, excited by a mode‐composited transmission line (MCTL).The design is realized through the application of low temperature co‐fired ceramic (LTCC) technology and characterized by closely matched DP beam scanning ranges.