LTCC filtering medium resonant antenna

Abstract

The invention discloses an LTCC filtering dielectric resonant antenna, and the antenna comprises a low-temperature co-fired ceramic substrate and a dielectric resonator; the low-temperature co-fired ceramic substrate adopts three layers of substrates, and an integrated waveguide resonant cavity power divider based on an LTCC substrate is located at the bottommost layer; the dielectric resonator isa 2*2 array antenna, and the dielectric resonator is fixedly arranged at the top of the low-temperature co-fired ceramic substrate; the epsilon r of the low-temperature co-fired ceramic substrate is5.9, and the loss tangent is 0.0023; the thicknesses of the three layers of cavities of the low-temperature co-fired ceramic substrate are sequentially as follows from bottom to top: h1 = 0.58 mm, h2= 0.19 mm and h3 = 0.38 mm, and the thickness of the metal layer of the low-temperature co-fired ceramic substrate is 10 [mu]m. According to the filtering medium resonant antenna, the LTCC three-dimensional integration technology is fully utilized, the size is effectively reduced, the overall size is 12mm, 12mm and 2.4 mm, and the filtering medium resonant antenna is suitable for being applied toa 5G wireless communication system and a feed source of a transmission and reflection antenna array.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an LTCC filter dielectric resonant antenna. Background technique [0002] With the development of wireless communication technology and the requirements of communication systems, high-gain antennas have aroused the interest of researchers. In the 1980s, researchers at the University of Houston published the first paper on dielectric resonant antennas, which made dielectric resonators an option for antenna design. The principle of the resonant cavity of the dielectric resonator and the metal waveguide structure is similar, so according to the basic theory of the resonant cavity, on the electric wall of the metal waveguide resonant cavity, the tangential component of the electric field and the normal phase component of the magnetic field are both zero, incident to the electric wall The electromagnetic wave on the surface will be completely reflected back, so when a closed cavity ...

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Problems solved by technology

[0003] However, in the existing technology, either the size of the antenna is relatively large, or the manufacturing process is complicated, and if the feeding antenna and the reflected wave are on the same side, the performance of the antenna will be affected

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