EP4614726A1

EP4614726A1 - Antenna of an electronic device for a vehicle

Info

Publication number: EP4614726A1
Application number: EP24162223.2A
Authority: EP
Inventors: Georgios Atmatzakis
Original assignee: Valeo Comfort and Driving Assistance SAS
Current assignee: Valeo Comfort and Driving Assistance SAS
Priority date: 2024-03-08
Filing date: 2024-03-08
Publication date: 2025-09-10
Also published as: WO2025186164A8; WO2025186164A1

Abstract

The invention relates to an antenna (11) of an electronic device (1), said antenna (10) comprising :
- a body (110),
- a feeding pin (111.1),
- and a ground pin (111.2),
wherein said antenna (11) further comprises a loading pin (111.3), and its body (110) comprises
- a loop (1100) that goes from the feeding pin (111.1) to the loading pin (111.2) and that is configured to tune said antenna (11) to resonate according to a first frequency band (F1),
- a first arm (1101) and a first area (1102) of the body (110) that are linked to said loop (1100) that are configured to tune said antenna (11) to resonate according to a second frequency band (F2),
- a second arm (1103) that is linked to said loop (1100) that is configured to tune said antenna (11) to resonate according to a third frequency band (F3),
and wherein the antenna (11) further comprises a first reactive component (112) that is connected to said loading pin (111.2).

Description

FIELD OF THE INVENTION

The present invention relates to an antenna of an electronic device. Such antenna, may be used, but not exclusively, in the automotive domain. The invention also relates to an electronic device that comprises such antenna.

BACKGROUND OF THE INVENTION

In the automotive domain, an antenna of an electronic device, well-known by the person skilled in the art, comprises a body, a feeding pin and a ground pin both connected to an electronic support of the electronic device.
The electronic device is a telematics control unit. It permits to wirelessly connect the vehicle to different systems such as cloud services, other vehicles, base stations etc. In order for the vehicle to communicate with different systems, the antenna has to cover a wide range of frequency bands.
One problem of this prior art is that the wider the range of frequencies bands is to cover, the bigger the antenna is in terms of size to maintain the same performance, and the electronic device where the antenna is embedded is limited in space and can't receive a big antenna. On the other hand, smaller antennas have compromised performance.
It is an object of the invention to provide an antenna of an electronic device, which resolves the problem above-stated.

SUMMARY OF THE INVENTION

To this end, it is provided an antenna of an electronic device, said antenna comprising :

a body,
a feeding pin, and
a ground pin,

wherein said antenna further comprises a loading pin, and its body comprises :
- a loop that goes from the feeding pin to the loading pin and that is configured to tune said antenna to resonate according to a first frequency band,
- a first arm and a first area of the body that are linked to said loop that are configured to tune said antenna to resonate according to a second frequency band,
- a second arm that is linked to said loop that is configured to tune said antenna to resonate according to a third frequency band,
and wherein the antenna further comprises a first reactive component that is connected to said loading pin.

As we will see in further details, thanks to the design of the antenna, one can adapt the antenna without a change in its shape, just by changing the value of the component at the loading pin so that it tunes the antenna for different country standards. Thus, one obtains a multiband antenna that can be embedded in an electronic device for a vehicle.
According to non-limitative embodiments of the invention, the antenna of an electronic device further comprises the following characteristics.
In a non-limitative embodiment, said first area of the body is a third arm that is connected to said loop or is an area with a parallelepiped form.
In a non-limitative embodiment, the first frequency band is a low frequency band between 617 MHz to 960 MHz.
In a non-limitative embodiment, the second frequency band is between 1.7 GHz to 2 GHz.
In a non-limitative embodiment, the third frequency band is between 1.3 GHz to 1.6 GHz
In a non-limitative embodiment, said loop, said first arm and said first area are configured to tune the antenna to resonate according to a fourth frequency band.
In a non-limitative embodiment, the fourth frequency band is above 2 GHz.
In a non-limitative embodiment, said antenna further comprises :

n second reactive component(s), with n=1 to N, with N a natural number,
a switch that is connected to said loading pin and to said n second reactive component(s), said switch being configured to tune the loop so that the antenna resonates according to n+1 subsets within the first frequency band.

In a non-limitative embodiment, said switch is configured to take :

a first position where it is off and where the loop is tuned so that the antenna resonates according to a first subset,
an n+1th position where it is on and where the loop is tuned so that the antenna resonates according to a n+1th subset.

In a non-limitative embodiment, said antenna comprises two second reactive components.
In a non-limitative embodiment, said first reactive component is an inductor.
In a non-limitative embodiment, said second reactive component(s) are inductors.
In a non-limitative embodiment, the first arm and the first area of the body extends along a same first plane as the loop, and the second arm extends along a third plane that is different from the first plane of the loop and that is closer to the electronic support.
In a non-limitative embodiment, the feeding pin is connected to a matching network.
In a non-limitative embodiment, said antenna is metal stamped.
There is also provided an electronic device comprising :

an electronic support, and
an antenna according to any of the preceding characteristics.

In a non-limitative embodiment, said electronic device is a telematics control unit.

BRIEF DESCRIPTION OF THE DRAWINGS

Some embodiments of methods and/or system in accordance with embodiments of the present invention are now described, by way of example only, and with reference to the accompanying drawings, in which:
Figure 1 is a schematic illustration of an electronic device for a vehicle comprising an antenna according to a non-limitative embodiment of the invention, said electronic device further comprising an electronic support,
Figure 2 is a view in perspective of the antenna and the electronic support of figure 1 according to a first non-limitative embodiment, said antenna comprising a feeding pin, a ground pin, a loading pin, and a body with a first area, a loop, a first arm, and a second arm,
Figure 3 is a view of the antenna of figure 2 that shows the planes along which different parts of the antenna extend,
Figure 4 is a view of the antenna of figure 2 according to a first non-limitative variant of embodiment, said antenna further comprising a first reactive component,
Figure 5 is a view of the antenna of the electronic device of figure 2 according to a second non-limitative variant embodiment, said antenna further comprising a first reactive component, a plurality of second reactive components, and a switch,
Figure 6 is a schematic illustration of the switch of figure 5 according to a non-limitative embodiment, said switch being able to take three positions so as to tune the antenna of figure 5,
Figure 7 is a view in perspective of the antenna and the electronic support of figure 1 according to a second non-limitative embodiment, said antenna comprising a feeding pin, a ground pin, a loading pin, a body with a first area, a loop, a first arm, and a second arm.

DESCRIPTION OF EMBODIMENTS OF THE INVENTION

In the following description, well-known functions or constructions by the person skilled in the art are not described in detail since they would obscure the invention in unnecessary detail.
The present invention relates to an antenna 11 for an electronic device 1, said antenna 11 being described in reference to figures 1 to 7. In a non-limitative embodiment, the electronic device 1 is an electronic device of a vehicle. In a non-limitative embodiment, the vehicle is a motor vehicle. In non-limitative variants of embodiment, the motor vehicle has a combustion engine, has an electric engine, or a hybrid engine. In a non-limitative variant of embodiment, the electronic device 1 is a telematics control unit also referred to as TCU in the following. This non-limitative embodiment is taken as a non-limitative example in the following.
The TCU permits wireless communication of the vehicle with cloud services, other vehicles, base stations etc. to exchange information such as in non-limitative examples the position of the vehicle, the speed of the vehicle, engine data etc.
In non-limitative examples, the TCU is used for the safety of the driver and passengers, to optimize the traffic flow and to make automatic emergency calls when an accident occurs.
As illustrated in figure 1, the telematics control unit 1 comprises :

an electronic support 10,
an antenna 11,
a RF (Radio Frequency) Module 12.

The TCU further comprising a housing 13 to receive the electronic support 10, the RF module 12 and the antenna 11.
The whole antenna 11 is placed on the electronic support 10.
In a non-limitative embodiment, the electronic support 10 is a printed circuit board assembly also referred to as PCBA in the following.
The RF module is responsible for the communication with other systems. The RF module is a network access device also referred to as NAD in the following. As a RF module in a TCU is well-known by the person skilled in the art, it is not described here.
The antenna 11 is a cellular antenna. It is configured to receive and transmit signals from and to a cellular base station. In a non-limitative embodiment, the antenna 11 is arranged next to the RF module 12. It is independent of the RF module and connected to it via a transmission line. The antenna 11 is responsible for the transmission and reception of signals for wireless communication. It is thus configured to be in a receiving mode and in a transmitting mode.
In a non-limitative embodiment, the antenna 11 is metal stamped. In a non-limitative embodiment illustrated in figure 2, the antenna 11 extends along a first direction X and a second direction Y perpendicular to the first direction X and extends in height along a third direction Z (called vertical direction Z) perpendicular to the first direction X and to the second direction Y. In a non-limitative embodiment, the antenna 11 is of the size D×D'=40mm×40mm (millimeters) on top view and the height h=is about 14,5mm.
As illustrated in figures 2 and 7, the antenna 11 comprises :

a body 110,
a feeding pin 111.1,
a loading pin 111.2,
a ground pin 111.3.

The feeding pin 111.1, the loading pin 111.2 and the ground pin 111.3 pass through the electronic support 10 and are soldered to the electronic support 10.
The antenna 11 is able to resonate according to a wide range of frequency bands : from 617 MHz to 4.2GHz according to the North American standard, and from 703MHz to 5GHz according to the European standard. More standards can be supported, for example China and Rest of the World (ROW). Moreover, the antenna 11 is configured to be fine-tuned to resonate within the range 617MHz to 960MHz (at low frequencies). The antenna 11 is therefore multiresonant : it has different resonant frequencies. The antenna 11 complies with the 5G spectrum standard which goes from 617MHz to 5GHz and has the following range of band frequencies:

617MHz to 960MHz,
1.71GHz to 2.69GHz,
1.432GHz to 1.517GHz,
3.3GHz to 4.2GHz,
4.4GHz to 5GHz.

The different pins of the antenna 11 are described hereinafter.
As illustrated in figure 2, the pins extend along the vertical direction Z. In non-limitative embodiment, they are soldered, press fitted, connected via spring, connected via gasket on the electronic support 10.
Feeding pin 111.1.
The feeding pin 111.1 permits to transmit and receive the power needed for the antenna 11.
As illustrated in figures 4 and 5, in a non-limitative embodiment, the feeding pin 111.1 is connected to a matching network 118. In a non-limitative embodiment, the matching network 118 comprises two inductors L1, L2 and one capacitor C1. The matching network 118 improves the impedance of the antenna 11. It permits maximizing the power transferred from the RF module 12 to the antenna 11 when the antenna 11 is in a transmitting mode and the power transmitted from the antenna 11 to the RF module 12 when the antenna 11 is in a receiving mode.

Ground pin 111.3.

The ground pin 111.3 matches the impedance of the antenna 11. It permits the connection of the antenna 11 to the ground. It provides some inductance to the antenna 11.
As illustrated in figures 4 and 5, in a non-limitative embodiment, the ground pin 111.3 is connected to a reactive component 114, called third reactive component 114 in the following. In a non-limitative embodiment, the third reactive component 114 is welded on the electronic support 10. The third reactive component 114 is to match the antenna 11 in certain frequency bands. The matching is when one achieves low reflection of a signal received by the antenna 11.

Loading pin 111.2.

In non-limitative embodiments, the loading pin 111.2 is connected to different elements such as reactive component(s) and/or a switch described later in the following, so as to tune the antenna 11 to resonate according to certain frequency bands.
The loading pin 111.2 is configured to tune the loop 1100 of the antenna 11 described later in the following. By tuning the loop 1100, one means that it changes its electrical length. By electrical length, one means the length of the loop 1100 in terms of wavelength. The antenna physical length is not changing, only the effective electrical length is by changing the value of the loading pin 111.2. Hence, the loading pin 111.2 is also called tuning pin 111.2.
In a non-limitative embodiment, the loading pin 111.2 is arranged away from the feeding pin 111.1. In a non-limitative embodiment, it is distant from 13 millimeters from the feeding pin 111.1. It permits loading the antenna 11 with reactive components away from the feeding pin 111.1, that is to say with reactive components that are not connected to the feeding pin 111.1. By loading the antenna with reactive components, one means that we force the antenna 11 to resonate higher or lower from its natural resonance by the use of the reactive components.

Body 110:

As illustrated in figure 3, the body 110 is composed of:

a first part 110.1 that extends along the first direction X and the second direction Y, along a first plane A, and
a second part 110.2 that extends along the vertical direction Z, along a second plane B relatively perpendicular to the first plane A. The first part 110.1 and the second part 110.2 are linked by a fold 110.3.

In a non-limitative embodiment, when the antenna 11 is metal stamped, the feeding pin 111.1, the ground pin 111.2 and the loading pin 111.3 arise from the second part 110.2.
The body 110 of the antenna 11 comprises :

a loop 1100 that goes from the feeding pin 111.1 to the loading pin 111.2 and that is configured to tune the antenna 11 to resonate according to a first frequency band F1,
a first arm 1101 and a first area 1102 of the body 110 that are connected to the loop 1100 and that are configured to tune the antenna 11 to resonate according to a second frequency band F2,
a second arm 1103 that is connected to said loop 1100 and that is configured to tune the antenna 11 to resonate according to a third frequency band F3.

In a first non-limitative embodiment illustrated in figures 2 to 6, the first area 1102 of the body 110 has a parallelepiped form. In a non-limitative variant of embodiment, it has a rectangular form.
In a second non-limitative embodiment illustrated in figure 7, the area first 1102 of the body 110 is a third arm.
As illustrated in figure 3, the first part 110.1 of the body 110 of the antenna 11 is composed of the loop 1100, the first arm 1101, the first area 1102 and the second arm 1103. The second part 110.2 permits connecting the loop 1100 to the feeding pin 111.1 and to the loading pin 111.2. The loop 1100 is the continuous path from the feeding pin 111.1 all the way around to the loading pin 111.2. It involves vertical and horizontal parts.
The loop 1100 is configured to cover the first frequency band F1, for the antenna 11 to resonate according to low frequencies. In a first non-limitative embodiment, the first frequency band F1 is between 617Hz to 960MHz. It is a low band frequency. Hence, the loop 1100 allows the antenna 11 to resonate within this first frequency band F1. It is to be noted that the antenna 11 resonates only at a sub part of a band frequency at a time. The selection happens with the tuning, either by the reactive components or actively, with a switch 116 described later which tunes the antenna 11 to resonate to different sub parts of a band frequency at a time.
By adjusting the electrical length of the loop 110, one fine-tunes the antenna 11 within the first frequency band F1. The electrical length of the loop 110 is modified as follows.
In a first non-limitative variant of embodiment illustrated in figure 4, the antenna 11 further comprises a first reactive component 112 that is connected to said loading pin 111.2 so as to fine-tune the loop 1100. In a non-limitative embodiment, the first reactive component 112 is welded on the electronic support 10. It is to be noted that this first non-limitative embodiment has been illustrated with the first non-limitative embodiment of the antenna 11 illustrated in figure 2 and 3, but it also applies to the second non-limitative embodiment of the antenna 11 illustrated in figure 7.
The first reactive component 112 changes the electrical length of the loop 1100. With the value of the first reactive component 112, one adjusts the electrical length of the loop 1100 and therefore the antenna resonant frequency within the first frequency band F1.
In a non-limitative embodiment, the first reactive component 112 is an inductor. It permits to increase the electrical length of the loop 1100 and this with no extra cost.
With the inductor 112 coupled with the loop 1100, one ensures that the antenna 11 resonates either within a first frequency band F1 between 617MHz to 900MHz which is the north America standard, or within a first frequency band F1 between 703MHz to 960MHz which is the European standard for low frequencies.
In a non-limitative embodiment, the inductance value of the inductor 112 is between 3nH (nano-Henry) to 2nH. This solution permits to obtain a low-cost antenna 11 as one only needs to change the inductor 112 to comply with the region requirements (here, Europe or North America).
It is to be noted that as the size of the antenna 11 is small, the fundamental resonance (that appears at the fundamental frequency) of the antenna 11 is not wide band. The fundamental resonance or mode appears in the low bands, 800 to 900MHz. The impedance bandwidth of the fundamental resonance varies between 100 to 150MHz depending on the tuning. It is to be noted that additional resonances due to harmonics appear at the higher frequency bands. It means that for a fundamental frequency where the antenna 11 resonates, the harmonics of this fundamental frequency permit the antenna 11 to resonate at a higher frequency band.
The first arm 1101, the first area 1102, and the second arm 1103 permit tuning the antenna 11 so that it resonates to a higher frequency than the first frequency band F1. It produces different resonances to cover higher different frequencies. In a non-limitative embodiment, the first arm 1101, and the second arm 1103 are inverted F arms, also called IFA arms. In the case of the second non-limitative embodiment illustrated in figure 7 of the antenna 11 where the first area 1102 is a third arm, in a non-limitative embodiment, the third arm 1102 is an inverted Farm.
The first arm 1101 and the first area 1102 are configured to cover the second frequency band F2 for the antenna 11 to resonate according to high frequencies. In a non-limitative embodiment, the second frequency band F2 is between 1.7Ghz to 2GHz. By adjusting the width and length of the first arm 1101 and the size and thickness of the first area 1102, one adjusts the antenna resonant frequency within said second frequencies band F2.
As illustrated in figure 3, in a non-limitative embodiment, the first arm 1101 is located on the same first plane A as the loop 1100. In a non-limitative embodiment, the first area 1102 is located on the same first plane first A as the loop 1100.
The second arm 1103 is configured to cover the third frequency band F3 for the antenna 11 to resonate according to high frequencies. In a non-limitative embodiment, the third frequency band F3 is between 1.3 to 1.6GHz. By adjusting the width and length of the second arm 1103, one adjusts antenna resonant frequency within said third frequency band F3.
As illustrated in figure 3, in a non-limitative embodiment, the second arm 1103 is located on a third plane A' that is different from the first plane A and that is relatively parallel to the first plane A. It is located at a lower plane (the third plane A') according to the vertical direction Z. Thus, the second arm 1103 is located at a lower level than the first arm 1101 and the first area 1102. It is brought closer to the ground and to the electronic support 10. It permits adding some capacitance to the second arm 1103 and to improve the matching with the third frequency band F3.
The combination of harmonics of the fundamental mode, of the loop 1100 and the IFA arms 1101/1102 permit to cover a fourth frequency band F4 for the antenna 11 to resonate according to high frequencies.
In a non-limitative embodiment, the fourth frequency band F4 is above 2GHz. By adjusting the dimensions of the width of some areas of the loop 1100, one adjusts the antenna resonant frequency within said fourth frequencies band F4.
For the first non-limitative embodiment of figure 2, in a non-limitative embodiment, as illustrated figure 3, the loop 1100 has a width w1 of 9.5mm, and a width w2 of 5.5mm, the first area 1102 has a dimension of 11.7x14.4mm, the first IFA arm 1101 has a dimension of 12.5x10.5mm (square area), and the gap between the first arm 1101 and the first area 1102 is 2mm, and the second IFA arm 1103 has a total length of 31mm and a tapering with a width from 3mm to 2mm. So, the dimensions of the components of the antenna 11 have been adjusted so that the antenna 11 works for all the frequencies bands F1 to F4.
In the same manner than for non-limitative embodiment, for the second non-limitative embodiment of figure 7, the dimensions of the components of the antenna 11 can be adjusted so that the antenna 11 works for all the frequencies bands F1 to F4.
In a second non-limitative variant of embodiment illustrated in figure 5, the antenna 11 comprises :

a first reactive component 112 that is connected to said loading pin 111.2,
n second reactive component(s) 113, with n = 1 to N, with N a natural number, and
a switch 116 that is connected to the n second reactive component (s) 113.

It is to be noted that this second non-limitative variant of embodiment has been illustrated with the first non-limitative embodiment of the antenna 11 illustrated in figure 2 and 3, but it also applies to the second non-limitative embodiment of the antenna 11 illustrated in figure 7.
In a non-limitative embodiment, the first reactive component 112 and the n second reactive component(s) 113 are inductors.
The n second reactive component(s) 113 and the switch 116 are connected to the loading pin 111.2 and are grounded.
In practice, there is a first electronic trace t1 that connects the first reactive component 112 to the loading pin 111.2 and a second electronic trace t2 that connects the switch 116 to the loading pin 111.2.
The first reactive component 112, and the n second reactive component(s) 113 are called loading components 112, 113.
The switch 116 is configured to tune the loop 1100 so that the antenna 11 resonates according to n+1 subsets (called sub-bands) F1.1_n+1 within the first frequency band F1.
The switch 116 is configured to enable the selection of the loading components 112, 113.1, 113.2 to load the antenna 11 so as to dynamically tune it for different frequency sub-bands within the first frequency band F1. In practice, it modifies the electrical length of the loop 1100 with the loading components 112, 113. Hence, the tuning of the loop 1100 leads to the tuning of the antenna 11. In a non-limitative embodiment, the tuning of the antenna 11 is done with either the first reactive component 112, or with a combination of the first reactive component 112 and one of the second reactive components 113.
Hence, said switch 116 is configured to take :

a first position p1 where it is off so that the loop 1100 is tuned according to a first subset F1.1₁,
an n+1th position (pn+1th) where it is on (aka active) so that the loop 1100 is tuned according to a n+1th subset F1.1_n+1.

In a non-limitative embodiment, the antenna 11 comprises two second reactive components 113, which are referred to as 113.1 and 113.2 and that are connected to the switch 116. In this case, as illustrated in figure 6, the switch 116 is configured to take :

a first position p1 where it is off and where the antenna 11 is loaded with the first reactive component 112 via the loading pin 111.2 so as to resonate according to a first subset F1.1₁ and thus the antenna 11,
a second position p2 where it is on (aka active) and where the antenna 11 is loaded with the first reactive component 112 and with one of the two second reactive components, here 113.1, via the loading pin 111.2 so as to resonate according to a second subset F1.1₂ and thus the antenna 11,
a third position p3 where it is on (aka active) and where the antenna 11 is loaded with the first reactive component 112 and with the other one of the two second reactive components, here 113.2, via the loading pin 111.2 so as to resonate according to a third subset F1.1₃ and thus the antenna 11.

In a non-limitative embodiment, the switch 116 is controlled by the NAD to take the different positions p1 and pn+1.
The first position p1 permits to tune the loop 1100 so that the antenna 11 resonates according to the first subset F1.1₁ which is between 600MHz and 700MHz in a non-limitative embodiment. As the first position p1 is a position where the switch 116 is off in a non-limitative embodiment, the second reactive component 113 is a bypass component that is responsible for the antenna tuning when the switch 116 is off.
The second position p2 permits to tune the loop 1100 so that the antenna 11 resonates according to the second subset F1.1₂ which is between 650MHz and 850MHz in a non-limitative embodiment.
The third position p3 permits to tune the loop 1100 so that the antenna 11 resonates according to a third subset F1.1₃ between 700MHz and 900MHz in a non-limitative embodiment.
The total of the three subsets F1.1₁, F1.1₂ and F1.1₃ corresponds to the first frequency band F1.
It is to be noted that the tuning based on the different country requirements can be done without the switch 116. Here, this second non-limitative variant of embodiment illustrated in figure 5 where the switch 116 is used, allows fine-tuning actively, while the electronic device 1 operates in one specific country. This improves the antenna 11 performance, compared to the passive antenna 11 (without switch 116) where the bandwidth is more limited and the performance is degraded. For other countries other than Europe or North America, one can choose the right value of the reactive components to have the right country band frequencies.
It is to be understood that the present invention is not limited to the aforementioned application, embodiments and variations and modifications may be made without departing from the scope of the invention. All statements herein reciting principles, aspects, and embodiments of the invention, as well as specific examples thereof, are intended to encompass equivalents thereof. In this respect, the following remarks are made. Hence, in other non-limitative embodiments, the electronic device 1 is a mobile phone, a connected object such as a wrist watch in a non-limitative example. Hence, in another non-limitative embodiment, the reactive components 112, 113, 114 can be capacitors.
Hence, some embodiments of the invention may comprise one or a plurality of the following advantages:

it provides an electronic device 1 for a vehicle that can embed a compact antenna 11 without bandwidth limitations,
it provides an antenna 11 that is a combination of a loop, and at least two inverted-F arms, that can be embedded in electronic device 1 with room constraint,
it provides an antenna 11 for a plurality of bandwidth frequencies that cover all supported 5G bands, which corresponds to a very wide bandwidth ranging from 617MHz to 5GHz,
it provides an antenna 11 with a single shape that can be tuned according to the customer requirements, here the vehicle manufacturer,
it provides an unique antenna 11 for different variant of countries (Europe, North America),
it provides in a non-limitative embodiment, an antenna 11 that can be dynamically fine-tuned by a switch 116 for different low frequency sub-bands, and thus cover a whole required frequency band,
it provides a low cost antenna 11, thanks to the use of reactive components and a metal stamped process.

Claims

Antenna (11) of an electronic device (1), said antenna (10) comprising :
- a body (110),

- a feeding pin (111.1), and

- a ground pin (111.2),

wherein said antenna (11) further comprises a loading pin (111.3), and its body (110) comprises :
- a loop (1100) that goes from the feeding pin (111.1) to the loading pin (111.2) and that is configured to tune said antenna (11) to resonate according to a first frequency band (F1),

- a first arm (1101) and a first area (1102) of the body (110) that are linked to said loop (1100) that are configured to tune said antenna (11) to resonate according to a second frequency band (F2),

- a second arm (1103) that is linked to said loop (1100) that is configured to tune said antenna (11) to resonate according to a third frequency band (F3),

and wherein the antenna (11) further comprises a first reactive component (112) that is connected to said loading pin (111.2).
Antenna (11) according to claim 1, wherein said first area (1102) of the body (110) is a third arm that is connected to said loop (1100) or is an area with a parallelepiped form.
Antenna (11) according to any of the preceding claims, wherein the first frequency band (F1) is a low frequency band between 617 MHz to 960 MHz.
Antenna (11) according to any of the preceding claims, wherein the second frequency band (F2) is between 1.7 GHz to 2 GHz.
Antenna (11) according to any of the preceding claims, wherein the third frequency band (F3) is between 1.3 GHz to 1.6 GHz.
Antenna (11) according to any of the preceding claims, wherein said loop (1100), said first arm (1101) and said first area (1102) are configured to tune the antenna (11) to resonate according to a fourth frequency band (F4).
Antenna (11) according to claim 6, wherein the fourth frequency band (F4) is above 2 GHz.
Antenna (11) according to any of the preceding claims, wherein said antenna (11) further comprises :
- n second reactive component(s) (113), with n=1 to N, with N a natural number,

- a switch (116) that is connected to said loading pin (111.2) and to said n second reactive component(s) (113), said switch (116) being configured to tune the loop (1100) so that the antenna (11) resonates according to n+1 subsets (F1.1_n+1) within the first frequency band (F1).
Antenna (11) according to the preceding claim, wherein said switch (116) is configured to take :
- a first position (p1) where it is off and where the loop (1100) is tuned so that the antenna 11 resonates according to a first subset (F1.1₁),

- an n+1th position (pn+1th) where it is on and where the loop (1100) is tuned so that the antenna 11 resonates according to a n+1th subset (F1.1_n+1).
Antenna (11) according to the preceding claim, wherein said antenna (11) comprises two second reactive components (113).
Antenna (11) according to any of the preceding claims, wherein said first reactive component (112) is an inductor.
Antenna (11) according to any of the preceding claims, wherein said second reactive component(s) (113) are inductors.
Antenna (11) according to any of the preceding claims, wherein the first arm (1101) and the first area (1102) of the body (110) extends along a same first plane (A) as the loop (1100), and the second arm (1103) extends along a third plane (A') that is different from the first plane (A) of the loop (1100) and that is closer to the electronic support (10).
Antenna (11) according to any of the preceding claims, wherein the feeding pin (111.1) is connected to a matching network (118).
Electronic device (1) comprising :
- an electronic support (10), and

- an antenna (11) according to any of the preceding claims,
Electronic device (1) according to the preceding claim, wherein said electronic device (1) is a telematics control unit.