RU202871U1 - ANTENNA UNIT ANT - Google Patents

Abstract

The utility model relates to communication devices, in particular to an antenna unit for a telecommunication device, which can be used in networks as part of passenger information systems in public transport vehicles for receiving GPS / GLONASS signals. The technical result achieved when implementing the claimed utility model is in signal amplification, i.e. receiving a signal to the built-in antenna of the modem with minimal losses, as well as ensuring the maximum quality of communication in modern data transmission networks (GSM, 3G, 4G, Wi-Fi, etc.) by increasing the number of antenna modules. , including the base of the antenna unit, antenna elements, an antenna cable for connection to communication modems and a GNSS signal receiver and a protective cap, characterized in that it contains four GSM / UMTS / LTE antenna elements in a single housing for connecting at least two LTE MiMo 2x2 modules and GPS / GLONASS antenna element for connecting a GNSS receiver.

Description

The utility model relates to communication devices, in particular to an antenna unit for a telecommunication device, which can be used in networks as part of passenger information systems in public transport vehicles for receiving GPS / GLONASS signals.

A known antenna unit for a telecommunication device and a telecommunication device containing a dielectric substrate, a dielectric coating on a dielectric substrate, a slotted antenna array formed in a metal layer placed on a dielectric substrate or in it (patent RU No. 2652169, H01Q 21/00, publ. 25.04 .2018). The slotted antenna array is configured to form a traveling wave propagating over the dielectric substrate and dielectric coating. The slotted antenna array has two groups of slotted elements, each slotted element of the second group has a shorter length than the slotted element of the first group. Slotted elements of the first and second groups are located opposite each other, forming pairs of slotted elements. In this case, in a pair, the distance from the slotted element of the first group to the slotted element of the second group is chosen so as to provide a phase shift between the waves emitted by them by 90 °. Pairs of slotted elements are placed out of alignment so that even pairs of slotted elements are displaced relative to adjacent odd pairs of slotted elements. The technical result consists in ensuring the formation of the directivity of the radiation of the antenna, increasing the scanning range, increasing the efficiency of the millimeter-wave antenna, reducing signal losses.

Known antenna unit for the global navigation satellite system (GNSS) (patent RU No. 2368040, H01Q 1/28, publ. 20.09.2009) The technical result is to provide a wide frequency band and provide a compact size of the antenna without increasing the overall size of the antenna unit. An antenna system for working with GNSS and GPS signals contains an antenna unit body with a screen of about 1 ... 1.5 wavelengths, a radiating plate located above the said screen and separated from each other, a power line for supplying a signal to the radiating plate, and the screen has a cavity in the form a recess in which the emitting plate is located so that the height of the emitting plate above the upper edge of the screen is no more than 0.05λ of the wavelength of the signal to be transmitted or received by the MPA. The antenna system can be single-band and dual-band with a retarding structure, in the form of a plurality of conductive metal ribs or pins located on the radiating plate and / or screen.

Known antenna unit for a vehicle, containing a base element formed as an integral part of the outer plastic panel of the vehicle roof, and an antenna functionally supported by a base element, and the integral parts of the base element are the first and second connecting elements, where the first connecting element is made with the ability to provide a connection between the base element and the component requiring the use of an antenna, and the second connecting element is configured to provide an electrical connection to the antenna (patent RU No. 149360, H01Q 1/28, B60R 11/02, publ. 27.12.2014) ...

A known antenna unit for a telecommunication device and a telecommunication device configured for wireless communication, containing a dielectric substrate, a dielectric coating on a dielectric substrate, an antenna array containing antenna elements placed in a dielectric substrate, and configured to generate radiation and transmit radiation to create a traveling waves propagating along the dielectric substrate and dielectric coating, elements of spatial matching with a dielectric coating made in the dielectric substrate and associated with antenna elements, while the said elements of spatial matching are made with the possibility of spatial matching of the antenna array with a dielectric coating and reducing the reflection of radiation from the dielectric coating when propagating radiation from the antenna array (patent RU No. 2650349, H01Q 1/00, publ. 11.04.2018). The technical result consists in ensuring the formation of the directivity of the radiation of the antenna, increasing the scanning range, increasing the efficiency of the millimeter-wave antenna, reducing signal losses.

The known technical solutions are not suitable for high-frequency applications due to complex power supply circuits, a large number of lumped elements and a large number of switching elements.

Known antenna complex VA-2695 SOTA GPS \ GLONASS \ GSM-900 \ 1800 \ 3G-2100 \ 4G-2600, designed to work as part of the navigation systems of city vehicles - buses, trolley buses, trams (https://digitalangel.ru/ catalog / antenny / antenna-gsm-3g-4g-wifi-wimax-vreznaya-triada-2695-sma), selected as a prototype.

These solutions do not allow connecting more than one modem, which imposes restrictions on the range and stability of the devices.

The technical result achieved by the implementation of the claimed utility model consists in signal amplification, i.e. receiving a signal to the built-in antenna of the modem with minimal losses, as well as ensuring the maximum quality of communication in modern data transmission networks (GSM, 3G, 4G, Wi-Fi, etc.) by increasing the number of antenna modules.

The technical result is achieved by ensuring the formation of the directional diagram of the antenna unit, increasing the scanning range, increasing the antenna efficiency, reducing signal losses and increasing the channel capacity due to the possibility of connecting several modems and using the MIMO mode. This complex is specially designed to provide reliable access to mobile networks as part of a system using two modems in MIMO 2x2 mode, or one modem in 4x4 mode.

The drawings show the claimed utility model.

FIG. 1 shows the ANT antenna unit, top view.

FIG. 2 shows the protective cap 1 and the base of the ANT antenna unit 2.

FIG. 3 shows the antenna elements 3 located on the base of the antenna unit 2.

An antenna unit for a telecommunications device, including an antenna unit base, antenna elements, an antenna cable for connection to communication modems and a GNSS signal receiver and a protective cap, characterized in that it contains four GSM / UMTS / LTE antenna elements in a single housing, for connecting at least two LTE MiMo 2x2 modules and a GPS / GLONASS antenna element for connecting a GNSS receiver.

Antenna unit ANT is designed for installation on the roof of a vehicle (bus, trolleybus, tram, etc.). They consist of a base, which serves for fixing the unit on the vehicle roof, as well as for fixing the antenna elements. The antenna elements installed on the base are connected to the communication modems inside the vehicle using an antenna cable. The protective cap serves to protect the antenna elements from external influences (rain, wind, mechanical influences during washing).

The use of such a device provides a high-quality connection between the modem and the base station, which makes it possible to use the Internet more comfortably in places with insufficient network coverage, is quickly and easily installed, and does not require intervention in the design of radio modems.

Table 1 shows the main technical characteristics of the declared utility model.

Standard LTE-800 GSM-900 GSM-1800 3G-2100 WiFi-2400 LTE-2600 GPS \ GLONASS Frequency range, MHz 790 ... 840 880 ... 960 1710 ... 1880 1900 ... 2170 2400 ... 2483 2496 ...
2696 1574 ... 1610 Average antenna gain *, dBi 0.8 0.5 0.1 1.3 1.5 1.7 four Amplifier gain, dB 32 Amplifier supply voltage, V 3 ... 5 Consumption current, mA eleven VSWR, no more (typical value) 3.2 (2.5) 2 (1.8) 1.8 (1.5) Isolation between antennas, not less, dB thirteen 15 Polarization vertical circular right Radiation pattern maximum above the horizon, degrees 32 34 33 eighteen 23 23 Directional pattern width at 50% power level, degrees in the horizontal plane 360 (circular) in the vertical plane above the horizon * 76 62 43 fifty 28 thirty Irregularity of the radiation pattern in the horizontal plane, no more, dB ± 1.3 ± 1.7 ± 2.2 ± 2.2 ± 2.5 ± 2.2 Operating temperature range, ° C –40 ... + 80 Lightning protection DC short circuit Case execution sealed IP65 Overall dimensions (L, W, H), mm 401x401x99 Weight (at standard length), g Cable type RG58A / U Cable length, standard **, m 1.5 Connector ** FME-F, SMA-M, RP-SMA-F, N-M, TNC-M

* Specified specifications are for free-space antenna installations. When installed on a conductive surface, the gain increases, and the maximum radiation pattern approaches the horizon.

Claims (1)

Antenna unit for a telecommunications device, which includes an antenna unit base, antenna elements, an antenna cable for connection to communication modems and a GNSS signal receiver and a protective cap, characterized in that it contains four GSM / UMTS / LTE antenna elements in a single housing for connection of at least two LTE MiMo 2x2 modules and a GPS / GLONASS antenna element for connecting a GNSS receiver.

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