Search

EP-4740267-A1 - MONOPOLE ANTENNA STRUCTURE

EP4740267A1EP 4740267 A1EP4740267 A1EP 4740267A1EP-4740267-A1

Abstract

The present disclosure relates to a monopole antenna structure [100] for a wireless network component/device. The monopole antenna structure [100] comprises: (a) an ivory-shaped antenna structure [102] mounted on a base Printed Circuit Board (PCB) [104]; (b) a feed line [202] connected to the ivory-shaped antenna structure [102] at an intermediate point along the length of the antenna structure [102]; (c) a conductor entity [204] comprising an inner conductor and an outer conductor; and (d) a monopole grounding stub [206] connected to the antenna structure [102] at a bottom point of the antenna structure [102] on the base PCB [104], wherein the inner conductor of the conductor entity [204] is soldered onto the feed line [202], and the outer conductor of the conductor entity [204] is soldered onto the monopole grounding stub [206].

Inventors

  • VERMA, VIJAY
  • BHATNAGAR, AAYUSH
  • BHATNAGAR, PRADEEP KUMAR
  • Penta, Praveen
  • GUPTA, SHUBHAM KUMAR

Assignees

  • Jio Platforms Limited

Dates

Publication Date
20260513
Application Date
20240615

Claims (13)

  1. 1. A monopole antenna structure [100] comprising: an ivory-shaped antenna structure [102] mounted on a base Printed Circuit Board (PCB) [104]; a feed line [202] connected to the ivory-shaped antenna structure [102] at an intermediate point along a length of the antenna structure [102]; a conductor entity [204] comprising an inner conductor and an outer conductor; and a monopole grounding stub [206] connected to the antenna structure [ 102] at a bottom point of the antenna structure [102] on the base PCB [104], wherein the inner conductor of the conductor entity [204] is soldered onto the feed line [202], and the outer conductor of the conductor entity [204] is soldered onto the monopole grounding stub [206] .
  2. 2. The monopole antenna structure [100] as claimed in claim 1, wherein the ivory-shaped antenna structure [102] is associated with a pre-defined wavelength.
  3. 3. The monopole antenna structure [100] as claimed in claim 1, wherein the ivory-shaped antenna structure [102] is mounted on the base PCB [104] at a pre-defined angle.
  4. 4. The monopole antenna structure [100] as claimed in claim 1, wherein the conductor entity [204] is a Radio Frequency (RF) coaxial cable.
  5. 5. The monopole antenna structure [100] as claimed in claim 1, wherein the base PCB [104] comprises a copper layer forming an antenna base ground [108], the antenna base ground [108] further comprising one or more cut-outs [402] .
  6. 6. The monopole antenna structure [100] as claimed in claim 1, further comprising one or more soldering pads [208] mounted to a monopole antenna PCB [106], such that the soldering pads [208] provide strength to the monopole antenna PCB [106] when the monopole antenna PCB [106] is mounted on the base PCB [104],
  7. 7. The monopole antenna structure [100] as claimed in claim 1, wherein the ivory-shaped antenna structure [102] has a variable input impedance based on a tapping point on the ivoryshaped antenna structure [102],
  8. 8. The monopole antenna structure [100] as claimed in claim 7, wherein a target input impedance from the variable input impedance of the ivory-shaped antenna structure [102] is matched with an impedance of the conductor entity [204] .
  9. 9. The monopole antenna structure [100] as claimed in claim 1, wherein a width value of the ivory-shaped antenna structure [102] increases from bottom to top.
  10. 10. The monopole antenna structure [100] as claimed in claim 1, comprises a plurality of the monopole antennas [302, 304] mounted on the base PCB [104] such that, upon mounting, each of the plurality of monopole antenna [302, 304] is placed at a pre-defined distance and at an orthogonal orientation with respect to each other.
  11. 11. The monopole antenna structure [100] as claimed in claim 10, wherein the pre-defined distance is based on a minimum port-to-port isolation value.
  12. 12. The monopole antenna structure [100] as claimed in claim 10, wherein each of the plurality of monopole antenna [302, 304] is inclined at a corresponding pre-defined angle with the base PCB [104],
  13. 13. The monopole antenna structure [100] as claimed in claim 1, wherein an open stub [210] is connected at a top point of the ivory-shaped antenna structure [102] .

Description

MONOPOLE ANTENNA STRUCTURE FIELD OF THE DISCLOSURE [001] Embodiments of the present disclosure generally relate to a wireless device in a wireless communication system. More particularly, embodiments of the present disclosure relate to a monopole antenna structure for a wireless network component/device. BACKGROUND OF THE DISCLOSURE [002] The following description of the related art is intended to provide background information pertaining to the field of the disclosure. This section may include certain aspects of the art that may be related to various features of the present disclosure. However, it should be appreciated that this section is used only to enhance the understanding of the reader with respect to the present disclosure, and not as admissions of the prior art. [003] Antennas are used in wireless communication systems to broadcast and receive radio frequency signals. Antennas can generally be either unidirectional or omnidirectional. Furthermore, there are antenna systems that offer directed gains through electronic scanning. A lot of these antenna systems suffer from considerable loss and are very expensive. Furthermore, the wireless communication technologies in use today provide relatively little space for antenna components. [004] Recently, with the development in wireless technology and advancement of components installed in networks for providing wireless communication services to users, the frequency band of the antennae in the network components is diversifying. In addition, the network components are required to provide a variety of services while miniaturizing and lightweighting. In order to satisfy these demands, antennas and components employed in mobile communication terminals are becoming more versatile and at the same time becoming smaller, while increasing performance characteristics such as increased bandwidth, gains, etc. Furthermore, antennas used in wireless communication devices are gradually embedded in the devices and components. Therefore, the antenna mounted inside a wireless network component is required to satisfy the required performance while occupying a very small antenna volume inside the components. [005] In a wireless communication system, a geographic area may often be split into a number of sections or smaller geographical areas known as cells. Each cell may be served by a separate base station. In order to provide two-way radio frequency (RF) communications with fixed and mobile customers ("users") dispersed across a cell, the base station may comprise a baseband equipment, radios, and antennas, along with other network components. A cell may normally serve customers within, say, a range of 2-20 km from a base station. However, smaller cells are usually used in some areas to boost capacity and performance. [006] Small cell base stations are low power base stations with a significantly lower range than standard "macro cell" base stations. They can operate in licenced and/or unlicensed spectrum. Users within a limited geographic region (such as tens or hundreds of metres around the small cell base station) may be the target audience for small cell base stations. The macro cell base station can offload most or all of the traffic in the region of the small cell base station by using small cells, for instance, to offer cellular coverage to heavy traffic locations within the macro cell. Similarly, a picocell is a small cellular base station that is typically used to extend coverage to indoor areas that may be even smaller than that covered by a small cell. This may include, but not limited to, in-building offices, shopping malls, train stations, stock exchanges, etc., or more recently inaircraft. In cellular networks, picocells are typically used to extend coverage to indoor areas where outdoor signals do not reach well, or to add network capacity in areas with very dense phone usage, such as train stations or stadiums. Also, a Customer Premises Equipment (CPE) is telecommunications and information technology equipment that is usually kept at the customer's physical location rather than on the service provider's premises. A CPE may generally refer to devices such as routers, network switches, residential gateways, set-top boxes, home networking adapters and internet access gateways that enable consumers to access providers' communication services and distribute them within a defined area. [007] A small geographical area or small-proximity indoor space is covered by the small cells in any cellular communication networks. Antenna(s) in the small cells play an important role in any cellular communication networks. A monopole antenna is a class of radio antenna consisting of a straight rod-shaped conductor, often mounted perpendicularly over some type of conductive surface, called a ground plane. Currently, the monopole antenna designs used for the Pico cell, Small Cell and Customer Premises Equipment (CPE) are highly dependent on system ground dimensions in which it is