Antennaless wireless device

Abstract

The invention refer to an antennaless wireless handheld or portable device (100) comprising: a user interface module (101), a processing module (102), a memory module (103), a communication module (104) and, a power management module (105); the communication module (104) including a radiating system (200) capable of transmitting and receiving electromagnetic wave signals in a first frequency region; said radiating system (200) comprising a radiating structure (201) comprising or consisting of at least one ground plane layer (206) including a connection point (207), at least one radiation booster (204) including a connection point (205) and an internal port (208), wherein the internal port (208) is defined between the connection point (205) of the at least one radiation booster (204) and the connection point (207) of the at least one ground plane layer (206); wherein a ground plane rectangle (450) is defined as being the minimum-sized rectangle that encompasses the at least one ground plane layer (206, 402), so that the sides of the ground plane rectangle (450) are tangent to at least one point of the at least one ground plane layer (206, 402), wherein the ratio between a side of the ground plane rectangle (450) and the free-space wavelength corresponding to the lowest frequency of the first frequency region is larger than 0.1 such that the ground plane layer supports a radiation mode; wherein the at least one radiation booster (204) couples the electromagnetic energy from the radiofrequency system (202) to the ground plane layer (206) in transmission, and from the ground plane layer (206) to the radiofrequency system (202) in reception; wherein the at least one radiation booster (204) has a maximum size smaller than 1 / 30 times the free-space wavelength corresponding to the lowest frequency of the first frequency region; the radiating system (200) further comprising a radiofrequency system (202), and an external port (203).

Description

technical field [0001] The present invention relates to wireless handheld devices, in particular to wireless portable devices that require transmission and reception of electromagnetic wave signals. Background technique [0002] Wireless handheld or portable devices typically run one or more cellular communication standards and / or wireless connectivity standards, each assigned to one or more frequency bands contained within one or more regions of the electromagnetic spectrum. within an area. [0003] For this purpose, a certain space within the wireless handheld or portable device is usually dedicated to integrating the radiating system. However, the radiation system is desirably small in order to occupy as little space as possible inside the device, which then allows to obtain a smaller device, or to add more special devices and functions to the device. At the same time, it is sometimes required that the radiation system be flat, since this allows obtaining a slim device,...

AI Technical Summary

Problems solved by technology

This is evident from the fact that no radiative mode can be excited on the ground plane layer due to the fact that the ground plane layer is electrically shorted (i.e., its size is much smaller than the wavelength) at the frequency of operation

[0020] Under this limitation, although the performance of wireless portable devices may be sufficient to receive electromagnetic wave signals (such as those of broadcasting services), the antenna elements cannot provide sufficient performance for cell phone communication standards that also require the transmission of electromagnetic wave signals (for example, in terms of input return loss or gain)

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