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US 11,605,893 B2Granted
Broadband decoupled midband dipole for a dense multiband antenna
AssigneeJohn Mezzalingua Associates, Inc.
InventorsJiaqiang Zhu, Niranjan Sundararajan, Wengang Chen
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Abstract
Disclosed is a midband dipole for use in a multiband antenna. The midband dipole has four folded dipoles, each of which is coupled to a decoupling circuit that has two capacitance points. The disclosed decoupling circuit configuration mitigates common mode resonance with nearby lowband dipoles, further preventing cross polarization in the midband.
Claims6
A radiator for a multiband antenna, comprising:
- a crossed dipole plate having four folded dipole arms disposed thereon, the four folded dipole arms arranged in a cross pattern;
- four decoupling circuits disposed on the crossed dipole plate, each of the four decoupling circuits coupled to a corresponding folded dipole arm, each of the four decoupling circuits has a first capacitive pad, a second capacitive pad, and first inductive trace coupled to the first capacitive pad, wherein the first conductive pad, the second conductive pad, and the first inductive trace are disposed on a first side of the crossed dipole plate;
- and
- a pair of crossed balun stem plates mechanically coupled to the crossed dipole plate, each of the crossed balun stem plates has a pair of ground layers, each of the ground layers has a first conductive stem contact and a second conductive stem contact, wherein the first conductive stem contact is electrically coupled to the first capacitive pad and the second conductive stem contact is electrically coupled to the second capacitive pad.
1 more element
Dependencies are inferred from the claim text.