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CN-122026091-A - Broadband end-shot side-shot dielectric resonator millimeter wave antenna based on common-caliber technology

CN122026091ACN 122026091 ACN122026091 ACN 122026091ACN-122026091-A

Abstract

The invention provides a broadband end-fire side-fire dielectric resonator millimeter wave antenna based on a common-caliber technology, which relates to the technical field of microwave millimeter wave communication. The end-fire SIDRA realizes the broadband work covering a plurality of commercial frequency bands through the combination of a parallel slot mode, a gap mode and a DRA mode, and simultaneously, the end-fire array is accommodated while the coupling between the end-fire units is reduced through removing the top metal paste. In addition, by introducing a metal patch and non-metallized through hole technology in the side-emitting part, good impedance matching is realized while the resonance frequency of the side-emitting part is reduced.

Inventors

  • DING XINHAO
  • CHEN YAOXI
  • CHEN JIANXIN

Assignees

  • 南通大学

Dates

Publication Date
20260512
Application Date
20260206

Claims (10)

  1. 1. A broadband end-shot side-shot dielectric resonator millimeter wave antenna based on a common-caliber technology is characterized by comprising an antenna substrate (4), a feed substrate (10) is arranged below the antenna substrate, a metal patch (1) is arranged above the antenna substrate (4), and a non-metallized through hole (2), a non-metallized groove (3), a metallized through hole (5) and a metal groove (6) are arranged on the antenna substrate (4).
  2. 2. The broadband end-fire side-fire dielectric resonator millimeter wave antenna based on the common-caliber technology, which is disclosed in claim 1, is characterized in that five groups of metallized grooves (6) are arranged on the antenna substrate (4), and each group of metallized grooves (6) consists of square bracket groove bodies.
  3. 3. The broadband end-fire side-fire dielectric resonator millimeter wave antenna based on the common-caliber technology according to claim 2 is characterized in that the non-metallized grooves (3) are arranged on the inner side of the metal groove (6), five groups of non-metallized grooves (3) are formed, each group of non-metallized grooves (3) consists of four L-shaped groove bodies, and the right angle part of each groove body corresponds to the right angle part of the groove body of the metal groove (6).
  4. 4. The broadband end-fire side-fire dielectric resonator millimeter wave antenna based on the common-caliber technology according to claim 3, wherein four non-metallized through holes (2) are arranged on the inner side of each group of non-metallized grooves (3), and each non-metallized through hole (2) is correspondingly arranged at an antenna substrate (4) area corresponding to the inner side of each groove body right angle of the non-metallized groove (3).
  5. 5. The broadband end-fire side-fire dielectric resonator millimeter wave antenna based on the common-caliber technology according to claim 4, wherein metallized through holes (5) are arranged between adjacent metal slots (6).
  6. 6. The broadband end-fire side-fire dielectric resonator millimeter wave antenna based on the common aperture technology according to claim 5, characterized in that a metallic ground (8) is arranged between the antenna substrate (4) and the feed substrate (10).
  7. 7. The broadband end-fire side-fire dielectric resonator millimeter wave antenna based on the common-caliber technology according to claim 6, wherein an H-shaped slit (9) and a cross-shaped slit (7) are arranged on the metal ground (8).
  8. 8. The broadband end-fire side-fire dielectric resonator millimeter wave antenna based on the common aperture technology according to claim 7, wherein the lower surface of the feeding substrate (10) is provided with a first microstrip line structure (11) for side-fire partial feeding and a second microstrip line structure (12) for end-fire partial feeding.
  9. 9. The broadband end-fire side-fire dielectric resonator millimeter wave antenna based on the common-caliber technology according to claim 8, wherein the first microstrip line structure (11) and the second microstrip line structure (12) are arranged at intervals.
  10. 10. The broadband end-fire side-fire dielectric resonator millimeter wave antenna based on the common-caliber technology according to claim 9, wherein a plurality of groups of the H-shaped slits (9) are arranged in the middle area of the metal ground (8) along the y-axis direction, and a plurality of groups of the cross-shaped slits (7) are arranged in the edge area of the metal ground (8) along the y-axis direction.

Description

Broadband end-shot side-shot dielectric resonator millimeter wave antenna based on common-caliber technology Technical Field The invention relates to the technical field of microwave and millimeter wave communication, in particular to a broadband end-fire side-fire dielectric resonator millimeter wave antenna based on a common-caliber technology. Background With the rapid development of wireless terminal communication networks, there is an increasing demand for ultra-high data rates and high capacity processing capabilities. Millimeter waves are used as a foundation stone for 5G evolution and future 6G communication, and the requirement of high-speed transmission can be met by virtue of the remarkable bandwidth advantage. Millimeter wave beam scanning arrays with high gain and flexible beam steering capabilities are widely regarded as an effective solution to ensure adequate spatial coverage quality. To date, there have been a great deal of research on beam scanning arrays employing a variety of techniques. Part of the research is to meet the beam coverage requirement by real side beam scanning or end beam scanning. However, these designs are mostly limited to one-dimensional (end-fire or side-fire) scanning, and it is difficult to meet the wide spatial coverage required for mobile terminals. To break through this limitation, researchers have proposed two-dimensional (end-fire and side-fire) beam scanning schemes, such as using symmetrical rectangular superimposed patches and linear tapered slots for side-fire and end-fire radiation, respectively, or two-dimensional scanning with metallized cavities and patches. However, existing methods still face a number of challenges. In some designs, the end-fire mode and the side-fire mode are mutually restricted, so that the bandwidth is limited, and it is difficult to cover a plurality of commercial frequency bands (such as n257 and n 258) at the same time. In other designs, the overlapping of radiating elements makes independent designs difficult, increasing feed complexity and structural cost. Dielectric resonator antennas are considered ideal choices for the millimeter wave band due to their high design flexibility and broadband excitation characteristics. Although beam scanning based on SIDRA arrays has been shown, two-dimensional coverage is achieved by separately placing two types of DRA arrays, the current DRA arrays still mainly adopt one-dimensional scanning, and the realization of a common-caliber millimeter wave DRA array with two-dimensional scanning capability still faces significant challenges. Therefore, the design of the common-aperture broadband millimeter wave SIDRA array system with the two-dimensional beam scanning capability has important research significance and application value. Disclosure of Invention The broadband end-fire side-fire dielectric resonator millimeter wave antenna based on the common caliber technology adopts the common caliber integration technology, and realizes the high integration of the end-fire and side-fire arrays in a single array volume through the optimized design of the structure of the Substrate Integrated Dielectric Resonator Antenna (SIDRA). The end-fire SIDRA realizes the broadband work covering a plurality of commercial frequency bands through the combination of a parallel slot mode, a gap mode and a DRA mode, and simultaneously, the end-fire array is accommodated while the coupling between the end-fire units is reduced through removing the top metal paste. In addition, by introducing a metal patch and non-metallized through hole technology in the side-emitting part, good impedance matching is realized while the resonance frequency of the side-emitting part is reduced. The invention provides a broadband end-fire side-fire dielectric resonator millimeter wave antenna based on a common caliber technology, which comprises an antenna substrate, a dielectric layer and a dielectric layer, wherein a feed substrate is arranged below the antenna substrate; A metal patch is arranged above the antenna substrate, and a non-metallized through hole, a non-metallized groove, a metallized through hole and a metal groove are arranged on the antenna substrate. Further, five groups of metallization grooves are formed in the antenna substrate, and each group of metallization groove consists of a square bracket groove body. The nonmetallic grooves are arranged on the inner side of the metal groove, five groups of nonmetallic grooves are formed, each group of nonmetallic grooves consists of four L-shaped groove bodies, and the right angle positions of each groove body correspond to the right angle positions of the groove body of the metal groove respectively. Further, four non-metallized through holes are formed in the inner side of each group of non-metallized grooves, and each non-metallized through hole is correspondingly arranged in an antenna substrate area corresponding to the inner side of the right angle of each groove body