Search

CN-122026062-A - Passive gap resonance relay structure and metalwork

CN122026062ACN 122026062 ACN122026062 ACN 122026062ACN-122026062-A

Abstract

The invention discloses a passive gap resonance relay structure and a metal piece, wherein the relay structure is integrally formed on a metal substrate, the relay structure comprises a plurality of resonance units which are penetrated up and down, each resonance unit comprises a center narrow slit and rectangular capacitor loading heads positioned at two ends of the center narrow slit, the width of the slit of the center narrow slit is Ws, the thickness of the metal substrate is T, the ratio of Ws to T is set to be 1.2:1 to 1.4:1, the industrial casting tolerance of +/-1 mm and frequency offset caused by environmental temperature and humidity can be effectively opposed through the structure, the S11 performance is in an extremely deep resonance state of less than-20 dB, the RSRP value of the environment is obviously improved, meanwhile, the resonance units are of a pure passive structure and are integrally formed with the metal substrate, and the structural strength of the metal substrate is not influenced.

Inventors

  • HU YUAN
  • CHEN QINGHUA
  • YANG JING
  • WANG ZHE
  • WANG BO
  • WU XIONG

Assignees

  • 湖南新光智能科技股份有限公司

Dates

Publication Date
20260512
Application Date
20260312

Claims (10)

  1. 1. A passive gap resonance relay structure is characterized in that the relay structure is integrally formed on a metal substrate, the relay structure comprises a plurality of resonance units (20) which are vertically penetrated, each resonance unit (20) comprises a center narrow slit (21) and rectangular capacitor loading heads (22) positioned at two ends of the center narrow slit (21), the width of a gap of the center narrow slit (21) is Ws, the thickness of the metal substrate is T, and the ratio of Ws to T is set to be 1.2:1 to 1.4:1.
  2. 2. A passive slot resonance relay structure as set forth in claim 1 wherein the ratio of Ws to T is set to 1.33:1.
  3. 3. A passive slot resonance relay structure as claimed in claim 1, characterized in that said resonant cells (20) comprise at least one first cell (20 a) and at least one second cell (20 b), wherein the center frequency of said first cell (20 a) is 2.1GHz and the center frequency of said second cell (20 b) is 1.8GHz.
  4. 4. A passive slot resonance relay structure as set forth in claim 3 wherein said first units (20 a) are arranged in two and separated on both sides of a vertical axis (31), said second units (20 b) are arranged in two and separated on both sides of a horizontal axis (32), said vertical axis (31) and said horizontal axis (32) are perpendicular to each other and the intersection point is located at the center of said metal base.
  5. 5. A passive slot resonance relay structure as set forth in claim 4 wherein said first unit (20 a) is sized such that the length of the center slot (21 a) is set to 43mm and the width is set to 8mm, and the length of the rectangular capacitive loading head (22 a) is set to 32mm and the width is set to 16mm; The second unit (20 b) is dimensioned such that the central slit (21 b) is set to 51mm in length and 8mm in width, and the rectangular capacitive loading head (22 b) is set to 34mm in length and 18mm in width.
  6. 6. A passive slot resonance relay structure as set forth in claim 1 wherein the corners of the rectangular capacitive loading head (22) are provided with first rounded corners (41), and the connection of the rectangular capacitive loading head (22) and the central slot (21) is provided with second rounded corners (42).
  7. 7. A passive slot resonance relay structure as claimed in claim 6, characterized in that the radius of the first rounded corner (41) and/or the second rounded corner (42) is set to 3mm.
  8. 8. A metal manhole cover is characterized by comprising a manhole cover body and the relay structure as set forth in any one of claims 1-7, wherein the relay structure is integrally formed on the manhole cover body.
  9. 9. A metal door comprising a door body and the relay structure of any one of claims 1-7, the relay structure being integrally formed on the door body.
  10. 10. A metal cabinet characterized by comprising a cabinet body and the relay structure according to any one of claims 1-7, wherein the relay structure is integrally formed on the cabinet body.

Description

Passive gap resonance relay structure and metalwork Technical Field The invention relates to the technical field of communication, in particular to a passive slot resonance relay structure and a metal piece. Background With the development of intelligent interconnection of everything, various scenes are gradually intelligent, online monitoring is completed through communication of a terminal monitor and a background, for example, in smart city construction, networking requirements of sensors in a basement are increasingly increased, however, a nodular cast iron well cover widely used at present has extremely strong shielding effect on electromagnetic waves in 1.8GHz and 2.1GHz frequency bands due to Faraday cage effect, the prior art usually attempts to leak signals by opening holes in the well cover, but the defects that 1, simple strip or circular aperture is extremely poor in impedance matching in a thick metal plate environment, return loss is often inferior to-8 dB, energy is greatly reflected, relay efficiency is low, 2, in order to achieve low-frequency resonance, common gaps are often excessively long in size, well cover reinforcing ribs are cut off, load bearing grades are affected, and 3, the influence of casting chamfer angles and tolerance on frequency deviation is not considered, so that theoretical models and engineering physical performance are disjointed. Therefore, a passive slot resonance relay structure and a metal member are urgently needed to solve the above-mentioned problems. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a passive slot resonance relay structure and a metal piece. The technical scheme includes that the passive slot resonance relay structure is integrally formed on a metal substrate, the relay structure comprises a plurality of resonance units which are vertically penetrated, each resonance unit comprises a center narrow slit and rectangular capacitor loading heads positioned at two ends of the center narrow slit, the width of a slot of the center narrow slit is Ws, the thickness of the metal substrate is T, and the ratio of Ws to T is set to be 1.2:1 to 1.4:1. As one of the preferred embodiments of the present invention, the ratio of Ws to T is set to 1.33:1. As one of the preferred embodiments of the present invention, the resonance unit includes at least one first unit and at least one second unit, wherein a center frequency of the first unit is 2.1GHz and a center frequency of the second unit is 1.8GHz. As one of the preferred embodiments of the present invention, the first unit is provided in two and is divided into two sides of the vertical axis, the second unit is provided in two and is divided into two sides of the horizontal axis, the vertical axis and the horizontal axis are perpendicular to each other, and the intersection point is located at the center of the metal substrate. As one of the preferred embodiments of the present invention, the first unit is sized such that the center slit is set to 43mm in length and 8mm in width, and the rectangular capacitive loading head is set to 32mm in length and 16mm in width; The dimensions of the second unit are such that the length of the central slot is set to 51mm and the width is set to 8mm, and the length of the rectangular capacitive loading head is set to 34mm and the width is set to 18mm. As one of the preferred embodiments of the invention, the four corners of the rectangular capacitor loading head are provided with first rounding corners, and the connection part of the rectangular capacitor loading head and the center narrow slit is provided with second rounding corners. As one of the preferred embodiments of the present invention, the radius of the first rounded corner and/or the second rounded corner is set to 3mm. The utility model provides a metal well lid, includes well lid body and relay structure, relay structure integrated into one piece is on the well lid body. A metal door comprises a door body and a relay structure, wherein the relay structure is integrally formed on the door body. The metal cabinet comprises a cabinet body and the relay structure, wherein the relay structure is integrally formed on the cabinet body. The passive slot resonance relay structure and the metal piece have the beneficial effects that the relay structure is integrally formed on a metal substrate, the relay structure comprises a plurality of resonance units which are penetrated up and down, each resonance unit comprises a center narrow slit and rectangular capacitor loading heads positioned at two ends of the center narrow slit, the width of the slit of the center narrow slit is Ws, the thickness of the metal substrate is T, the ratio of Ws to T is set to be 1.2:1 to 1.4:1, industrial casting tolerance of +/-1 mm and frequency offset caused by environmental temperature and humidity can be effectively opposed th