LOW-PROFILE BROADBAND HIGH-GAIN FILTERING ANTENNA

The present invention discloses a low-profile broadband high-gain filtering antenna. The antenna comprises a radiator, an upper-layer dielectric substrate, a lower-layer dielectric substrate, a microstrip feed-line having open stubs, a ground plane having a plurality of spaced slots, and a metallize...

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Bibliographic Details
Main Authors ZHANG, Xiuyin, Hu, Pengfei, PAN, Yongmei
Format Patent
LanguageEnglish
Published 14.06.2018
Subjects
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
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Summary:The present invention discloses a low-profile broadband high-gain filtering antenna. The antenna comprises a radiator, an upper-layer dielectric substrate, a lower-layer dielectric substrate, a microstrip feed-line having open stubs, a ground plane having a plurality of spaced slots, and a metallized via. The radiator generates resonances, provides a broadband and high-gain radiation passband, and meanwhile, adjusting the dimensions of the radiator can adjust the roll-off rate at the upper edge of the passband. The open stub generates a radiation null, and suppresses a resonance in upper band of the antenna. The spaced slot suppresses a resonance in lower band of the antenna. The metallized via connects the microstrip feed-line and the ground plane, generates a radiation null, and improves the roll-off rate at the lower edge of the passband.
Bibliography:Application Number: US201715554714