broadband antenna

A technology of gaps and radiating elements, applied in antennas, antenna arrays, antenna components, etc., can solve the problems of expensive current sheet arrays and patch arrays without high bandwidth, and achieve the effect of compact design

Active Publication Date: 2021-06-25
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current sheet arrays CSA and patch arrays are quite expensive, and patch arrays do not have high bandwidth

Method used

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Examples

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Embodiment Construction

[0038] Aspects of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings. Antennas disclosed herein may, however, be embodied in many different forms and should not be construed as limited to the aspects set forth herein. Like reference numbers in the drawings refer to like elements throughout.

[0039] Voltage standing wave ratio VSWR is used to illustrate the efficiency of example embodiments. VSWR is a function of the reflection coefficient that describes the power reflected from the antenna. If the reflection coefficient passes Given, then VSWR is defined by the following formula:

[0040]

[0041] Reflection coefficient is also known as s11 or return loss. See VSWR Table 1 below to see the numerical mapping between reflected power, s11, and VSWR.

[0042]

[0043] VSWR Table 1 maps voltage standing wave ratio to reflection coefficient (s11) and reflected power in % and dB.

[0044]The terminology used herei...

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PUM

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Abstract

The invention relates to a single-polarization radiator (40) comprising a plurality of planar notched radiating elements (41) arranged on a dielectric substrate (22). Each notched radiating element (41) includes: extending across the width (w) of the notched radiating element (w) on the first side of the dielectric substrate (22) from the leading edge (24) of the notched radiating element (41) to the notched radiating element The metallization area (23) of the rear edge (25) of (41); the tuning element (26) in the metallization area (23) adjacent to the feeding point of the notch radiation element (41); from the tuning element ( 26) a notch (28) extending to the leading edge (24) of the notched radiating element (41) thereby creating a notch profile (29); and extending the notch profile ( 29) a plurality of notches (42) in length.

Description

technical field [0001] The present disclosure relates to the field of wireless communications. In particular, it relates to broadband antennas comprising notch radiating elements. Background technique [0002] Nodes in a wireless communication network require antennas for communication between the network and user equipment UE, and the number of antennas varies depending on the number of frequencies used, the type of antennas used and how spatial diversity is achieved. A typical number of antennas per site is nine, with three per sector. Current typical antennas are narrowband and fall into two categories, low-band and mid / high-band antennas. The low band covers the 700-900 MHz frequency range, while the mid / high band covers 1700-2600MHz. Operators often lease site space for antennas from building owners and tower owners, and the number of antennas, antenna size and weight are factors in determining the cost of the lease. More and bigger and heavier antennas lead to high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/08H01Q21/06
CPCH01Q13/085H01Q21/064H01Q1/246H01Q21/0006H01Q21/24
Inventor C.克里特希达斯L.约翰逊S.恩格斯特姆G.A.基里亚库P.班塔维斯
Owner TELEFON AB LM ERICSSON (PUBL)
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