A Novel Small Tapered Slot Antenna for Passive Imaging Sensors

A Novel Small Tapered Slot Antenna for Passive Imaging Sensors

We propose a compact planar antenna for a 94-GHz-band passive mm-wave (PMMW) imaging array system. The key feature is a parabolic tapered slot antenna structure with a center cut metal line that controls its radiation pattern and reduces the sidelobe level of the H-plane. By using this structure, we...

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Hauptverfasser: Sato, M., Hirose, T., Sato, H., Sawaya, K., Mizuno, K.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Antenna arrays
Antenna radiation patterns
coplanar waveguide
Imaging
Microwave antennas
millimeter wave imaging
Planar arrays
Sensor arrays
slot antenna
Slot antennas
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Beschreibung
Zusammenfassung:We propose a compact planar antenna for a 94-GHz-band passive mm-wave (PMMW) imaging array system. The key feature is a parabolic tapered slot antenna structure with a center cut metal line that controls its radiation pattern and reduces the sidelobe level of the H-plane. By using this structure, we reduced the antenna size by one tenth compared to conventional tapered slot antennas, whereas the actual gain of this antenna was 12.4 dBi. In addition, this antenna has a circular radiation pattern. Therefore, it is suitable for a PMMW imaging array. We also present simple CPW-to-SLOT transitions with insertion loss of 0.5 dB between the 90 - 100GHz ranges.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2005.1516544