The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Kami mencadangkan pandu gelombang kepada peralihan garis jalur mikro untuk modul radar gelombang milimeter automotif. Peralihan secara tegak menghubungkan satu pandu gelombang dan satu atau dua garis jalur mikro. Konfigurasinya mudah kerana ia terdiri daripada pandu gelombang dan substrat dielektrik dengan kerajang kuprum. Selain itu peralihan tidak perlu melalui lubang pada substrat. Ia membawa kepada kos yang lebih rendah dan kebolehpercayaan yang lebih baik. Kami telah pun mencadangkan peralihan melalui-kurang dengan menggunakan pengubah impedans berbilang peringkat. Transformer impedans digunakan untuk menahan sinaran yang tidak diingini daripada peralihan serta padanan impedans. Dalam makalah ini, kami mencadangkan peralihan baharu dengan garis jalur mikro pada paksi panjang pandu gelombang manakala kebanyakan peralihan meletakkan garis jalur mikro pada paksi kecil (arah medan elektrik) pandu gelombang. Walaupun peralihan kami menggunakan struktur lenturan garisan jalur mikro, yang pada asasnya menyebabkan sinaran, konfigurasi kami yang dioptimumkan boleh mengekalkan sinaran yang kecil. Kami juga mereka bentuk peralihan dengan garis jalur mikro tunggal. Peralihan yang dicadangkan dengan 2 garisan mikrojalur boleh diubah suai kepada versi jaluran 1 jalur mikro dengan kehilangan sinaran minimum. Simulasi elektromagnet mengesahkan tahap sinaran kecil yang dijangkakan. Selain itu, kami membuat peralihan dengan struktur belakang ke belakang dan menentukan prestasi penghantaran dan sinaran. Kami juga membuat peralihan untuk antena tatasusunan tampalan. Kami mengesahkan bahawa sinaran yang tidak diingini daripada peralihan yang dicadangkan adalah kecil dan corak sinaran antena tatasusunan tidak diburukkan oleh peralihan.
Takashi MARUYAMA
Mitsubishi Electric Corporation
Shigeo UDAGAWA
Mitsubishi Electric Corporation
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Salinan
Takashi MARUYAMA, Shigeo UDAGAWA, "Design and Experiment of Via-Less and Small-Radiation Waveguide to Microstrip Line Transitions for Millimeter Wave Radar Modules" in IEICE TRANSACTIONS on Communications,
vol. E101-B, no. 12, pp. 2425-2434, December 2018, doi: 10.1587/transcom.2018EBP3062.
Abstract: We propose waveguide to microstrip line transitions for automotive millimeter wave radar modules. The transitions perpendicularly connect one waveguide and one or two microstrip lines. The configuration is simple because it consists of a waveguide and a dielectric substrate with copper foils. Additionally the transitions do not need via holes on the substrate. It leads to lower costs and improved reliability. We have already proposed a via-less transition by using multi-stage impedance transformers. The impedance transformers are used for suppressing undesirable radiation from the transition as well as impedance matching. In this paper, we propose a new transition with the microstrip lines on the long axis of the waveguide while most transitions place the microstrip lines on the minor axis (electric field direction) of the waveguide. Though our transition uses bend structures of microstrip lines, which basically cause radiation, our optimized configuration can keep small radiation. We also design a transition with a single microstrip line. The proposed transition with 2 microstrip lines can be modified to the 1 microstrip line version with minimum radiation loss. Electromagnetic simulations confirm the small radiation levels expected. Additionally we fabricate the transitions with back to back structure and determine the transmission and radiation performance. We also fabricates the transition for a patch array antenna. We confirm that the undesirable radiation from the proposed transition is small and the radiation pattern of the array antenna is not worsen by the transition.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2018EBP3062/_p
Salinan
@ARTICLE{e101-b_12_2425,
author={Takashi MARUYAMA, Shigeo UDAGAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={Design and Experiment of Via-Less and Small-Radiation Waveguide to Microstrip Line Transitions for Millimeter Wave Radar Modules},
year={2018},
volume={E101-B},
number={12},
pages={2425-2434},
abstract={We propose waveguide to microstrip line transitions for automotive millimeter wave radar modules. The transitions perpendicularly connect one waveguide and one or two microstrip lines. The configuration is simple because it consists of a waveguide and a dielectric substrate with copper foils. Additionally the transitions do not need via holes on the substrate. It leads to lower costs and improved reliability. We have already proposed a via-less transition by using multi-stage impedance transformers. The impedance transformers are used for suppressing undesirable radiation from the transition as well as impedance matching. In this paper, we propose a new transition with the microstrip lines on the long axis of the waveguide while most transitions place the microstrip lines on the minor axis (electric field direction) of the waveguide. Though our transition uses bend structures of microstrip lines, which basically cause radiation, our optimized configuration can keep small radiation. We also design a transition with a single microstrip line. The proposed transition with 2 microstrip lines can be modified to the 1 microstrip line version with minimum radiation loss. Electromagnetic simulations confirm the small radiation levels expected. Additionally we fabricate the transitions with back to back structure and determine the transmission and radiation performance. We also fabricates the transition for a patch array antenna. We confirm that the undesirable radiation from the proposed transition is small and the radiation pattern of the array antenna is not worsen by the transition.},
keywords={},
doi={10.1587/transcom.2018EBP3062},
ISSN={1745-1345},
month={December},}
Salinan
TY - JOUR
TI - Design and Experiment of Via-Less and Small-Radiation Waveguide to Microstrip Line Transitions for Millimeter Wave Radar Modules
T2 - IEICE TRANSACTIONS on Communications
SP - 2425
EP - 2434
AU - Takashi MARUYAMA
AU - Shigeo UDAGAWA
PY - 2018
DO - 10.1587/transcom.2018EBP3062
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E101-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2018
AB - We propose waveguide to microstrip line transitions for automotive millimeter wave radar modules. The transitions perpendicularly connect one waveguide and one or two microstrip lines. The configuration is simple because it consists of a waveguide and a dielectric substrate with copper foils. Additionally the transitions do not need via holes on the substrate. It leads to lower costs and improved reliability. We have already proposed a via-less transition by using multi-stage impedance transformers. The impedance transformers are used for suppressing undesirable radiation from the transition as well as impedance matching. In this paper, we propose a new transition with the microstrip lines on the long axis of the waveguide while most transitions place the microstrip lines on the minor axis (electric field direction) of the waveguide. Though our transition uses bend structures of microstrip lines, which basically cause radiation, our optimized configuration can keep small radiation. We also design a transition with a single microstrip line. The proposed transition with 2 microstrip lines can be modified to the 1 microstrip line version with minimum radiation loss. Electromagnetic simulations confirm the small radiation levels expected. Additionally we fabricate the transitions with back to back structure and determine the transmission and radiation performance. We also fabricates the transition for a patch array antenna. We confirm that the undesirable radiation from the proposed transition is small and the radiation pattern of the array antenna is not worsen by the transition.
ER -