High-frequency ultra-wideband dual polarization full wave radiation unit

Abstract

The invention relates to a high-frequency ultra-wideband dual polarization full wave radiation unit. The high-frequency ultra-wideband dual polarization full wave radiation unit includes a first dielectric substrate, four folding oscillators on the upper surface of the first dielectric substrate, four groups of band-shaped feeders which feed the four folding oscillators on the upper surface of the first dielectric substrate, four folding oscillators on the lower surface of the first dielectric substrate, four groups of band-shaped feeders which feed the four folding oscillators on the lower surface of the first dielectric substrate, and a radiating surface of a full wave oscillator, wherein the radiating surface is formed by copper coated layers being consistent in the upper layer and the lower layer on the first dielectric substrate; the upper and lower groups of folding oscillators respectively realize external feeding through a first feed bridge and a second feed bridge; the first feed bridge and the second feed bridge are respectively arranged on a second dielectric substrate and a third dielectric substrate; the second dielectric substrate and the third dielectric substrate are fixed in four balance baluns in an orthogonal manner; the internal and external conductors of coaxial cables respectively feed the band-shaped feeders through the balance baluns and the feed bridges. The high-frequency ultra-wideband dual polarization full wave radiation unit has the advantages of optimizing the folding oscillator circuit characteristic, realizing the ultra-wideband standing-wave ratio band width, and overcoming the problem that the full wave oscillator is hard to match high input impedance and is hard to realize the ultra-wideband frequency range requirement.

Description

【Technical Field】 [0001] The present invention relates to the field of communication, in particular to a high-frequency ultra-wideband dual-polarization full-wave radiation unit. 【Background technique】 [0002] With the rapid development of mobile communication technology and the coexistence of multiple systems and multiple standards, the requirements for base station array antennas are becoming higher and higher, and antenna integration and broadbandization have become the development trend. In the common frequency band of dual-polarized directional base station array antennas, the working frequency of DCS network is 1710MHz~1800MHz; the working frequency of PCS is 1850MHz~1990MHz; the working frequency of UMTS is 1920MHz~2170MHz; and with LTE and TD-LTE Development, in reality, there is a need for ultra-wideband antennas (relative bandwidth 44.9%) with operating frequencies that can completely cover 1710MHz to 2690MHz, which can include all the above network standards and meet ...

AI Technical Summary

Problems solved by technology

The traditional base station antenna with a bandwidth of about 20% has a horizontal half-power beamwidth between 60° and 70°. However, due to its ultra-wide bandwidth characteristics, the ultra-wideband antenna will cause discrete performance problems if its frequency is too wide , therefore, certain technical means must be adopted to overcome the

Images