TWM622916U - Radiation device - Google Patents

Abstract

A radiation device includes a radiator, a modifier and a converter. The radiator is used to receive a feed signal from an antenna feed terminal and convert the feed signal into a wireless signal for transmission. The modifier is disposed at one side of the radiator and is used to enhance the wireless signal. The converter is coupled to the modifier and the radiator, and used to adjust a gain of the feed signal according to an output signal from the modifier.

Description

Radiation device

The invention relates to the field of antennas, in particular to a radiation device that takes both transmission quality and use safety into consideration.

In a wireless communication system, the antenna acts as an intermediary point between the transceiver and the wireless environment, and has the function of converting between voltage/current signals and electromagnetic field signals, and changing the spatial distribution of electromagnetic waves. With the development of various wireless communication specifications and communication equipment, the function of the antenna becomes more and more important.

Antenna design must consider many factors, such as electromagnetic wave transmission loss, human safety regulations, and practical application architecture.

Embodiments provide a radiation device including a radiator, a regulator and a converter. The radiator is used for receiving the feed signal from the antenna feed end and converting the feed signal into a wireless signal for transmission. The adjuster is arranged near one side of the radiator to enhance the wireless signal. The converter is coupled to the regulator and the radiator, and is used for adjusting the gain of the input signal according to the output signal of the regulator.

The embodiment provides another radiation device including a radiator, a regulator and a converter. The radiator is used for receiving the feed signal from the antenna feed end and converting the feed signal into a wireless signal for transmission. The adjuster is arranged along the edge of the radiator to enhance the wireless signal. The converter is coupled to the regulator and the radiator, and is used for adjusting the gain of the input signal according to the output signal of the regulator.

1, 2, 3, 6: Radiation Devices

10: Radiator

121 to 124: Adjuster

14: Converter

16: Antenna feed end

18: Substrate

411 to 414, 421 to 424, 431 to 434, 511 to 514, 521 to 524: Simulation curves

FIG. 1 is a block diagram of a radiation device in the new embodiment.

FIG. 2 is a block diagram of another radiation device in the new embodiment.

FIG. 3 is a block diagram of another radiation device in the new embodiment.

Figure 4 shows the gain of the radiator in Figures 1 to 3.

Figure 5 shows the gain of the radiating device in Figure 3 in the two modes.

FIG. 6 is a block diagram of another radiation device in the new embodiment.

FIG. 1 is a block diagram of a radiation device 1 in the new embodiment. The radiation device 1 can be used in a portable device, and can transmit and receive wireless signals for wireless communication. The portable device can be a laptop, tablet or other device. The radiation device 1 can operate with multiple gains. For example, the radiation device 1 can operate with a higher gain and a lower gain, and can approach or move away from the radiation device 1 according to whether there is an object that can change the capacitance value (such as a user's finger or other body parts). to adjust the gain accordingly. When an object with a changeable capacitance value is not detected close to the radiation device 1, the radiation device 1 can operate with a higher gain to increase the transmission efficiency and transmission range; when an object with a changeable capacitance value is detected adjacent to the radiation device 1 , the radiation device 1 can operate at a lower gain so that the transmission power of the transmitted wireless signal meets the safety specification.

The radiation device 1 includes a radiator 10 , a regulator 121 , a converter 14 and a substrate 18 . The radiator 10 , the adjuster 121 , and the converter 14 can be disposed on the surface of the substrate 18 . The radiator 10 may be formed of a conductive sheet, which may be rectangular, having first to fourth sides. In some embodiments, the radiator 10 may be circular, triangular, or other suitable shape. The adjuster 121 can be an L-shaped conductive wire and is disposed near the first side of the radiator 10 . In some embodiments, the adjuster 121 may be linear or other suitable shape. The converter 14 can be coupled to the regulator The first end and the second end of the integral device 121 are coupled to the radiator 10 . Converter 14 may be an integrated circuit.

The radiator 10 can receive a feed signal from the antenna feed end 16 and convert the feed signal into a wireless signal for transmission. The feed signal can be a radio frequency signal generated by the converter 14, such as sixth generation (6G) ) radio frequency signal of communication technology, the adjuster 121 can enhance the wireless signal.

The regulator 121 and the converter 14 can be used to detect objects that increase the capacitance value. When the object is closer to the adjuster 121, the capacitance of the capacitor is larger. If there is no object that increases the capacitance value near the regulator 121 , the capacitance value of the capacitor approaches 0. The converter 14 can measure the capacitance value of the capacitor to determine whether there is an object around the regulator 121 that increases the capacitance value. In some embodiments, the converter 14 can also calculate the distance of the object from the adjuster 121 according to the capacitance value. When the capacitance of the capacitor is measured, the converter 14 can transmit the input signal to the first end of the regulator 121 , and the second end of the regulator 121 can receive the output signal. The input signal can be a clock signal, a pulse signal, an AC signal or other suitable signals. In some embodiments, the converter 14 can calculate the capacitance of the capacitor according to the delay time of the output signal relative to the reference signal. The reference signal can have a fixed delay time that does not change with approaching objects, and can be an input signal. The converter 14 can also measure the capacitance of the capacitor in other ways.

The converter 14 can adjust the gain of the input signal according to the output signal of the adjuster 121 . In some embodiments, the converter 14 can measure the capacitance value of the capacitor according to the output signal of the adjuster 121, so as to generate a detection signal indicating whether an object causing an increase in the capacitance value has been detected, and adjust the feedback according to the detection signal. gain of the incoming signal. When the delay time of the output signal exceeds the critical time, the converter 14 can determine that the capacitance value of the capacitor exceeds the critical capacitance value and an object has been detected, and generate a detection signal indicating that an object that causes the capacitance value to increase has been detected. In some embodiments, when the distance between the object and the regulator 121 is less than 5 cm, the delay time of the output signal will exceed the critical time. When there is an increase in the capacitance value around the regulator 121 When the object is in contact with the object, the wireless signal transmitted by the radiator 10 will naturally weaken, and at the same time, the converter 14 can actively reduce the gain of the input signal according to the output signal, thereby further weakening the wireless signal. In some embodiments, converter 14 may include a power amplifier. When the output signal indicates that an object has been detected, the converter 14 can reduce the gain of the power amplifier, and the power amplifier can generate a lower input signal with a lower gain, and transmit the lower input signal to the radiator 10, and then at the object Generates a wireless signal that meets safety regulations when approaching. On the contrary, when the delay time of the output signal is less than or equal to the critical time, the converter 14 can determine that the capacitance of the capacitor does not exceed the critical capacitance and does not detect the object causing the increase of the capacitance, and generates a signal indicating that the object is not detected. feed in the signal. In some embodiments, when no object causing the increase in capacitance is detected, the converter 14 can increase the gain of the power amplifier, the power amplifier can generate a higher feed signal at a higher gain, and transmit the higher feed signal to the radiator 10, thereby increasing the transmission power of the wireless signal when no object is approaching, increasing the transmission efficiency and the transmission range.

FIG. 2 and FIG. 3 are block diagrams of radiation devices 2 and 3 in the new embodiment, respectively. The difference between the radiation device 2 and the radiation device 1 is that a regulator 122 is additionally included. The adjuster 122 can be an L-shaped conductive wire disposed near the second side of the radiator 10 . In some embodiments, the adjuster 122 may be linear or other suitable shape, and the second side may be opposite the first side. The converter 14 may be coupled to the first end of the regulator 121 and the second end of the regulator 122 , and the second end of the regulator 121 may be coupled to the first end of the regulator 122 . The adjuster 122 can further enhance the wireless signal, so the gain of the radiation device 2 can be greater than the gain of the radiation device 1 . The difference between the radiation device 3 and the radiation device 2 is that a regulator 123 is additionally included. The adjuster 123 can be a straight conductive wire and is disposed near the third side of the radiator 10 . In some embodiments, the adjuster 121 and the adjuster 122 may be straight, and the adjuster 123 may be U-shaped or other suitable shapes, and the third side may be adjacent to the first side and the second side. The converter 14 may be coupled to the first end of the regulator 121 and the second end of the regulator 122, the second end of the regulator 121 may be coupled to the first end of the regulator 123, and the first end of the regulator 122 may be is coupled to the second end of the regulator 123 . The adjuster 123 can further enhance the wireless signal, so the gain of the radiation device 3 can be greater than the gain of the radiation device 2 .

Figure 4 shows the gain of radiators 1 to 3 in the sub-6GHz band (Sub-6G), where the horizontal axis represents frequency and the vertical axis represents gain. Sub-6G frequency bands can include 4 frequency bands including 617 to 960MHz, 1474 to 2620MHz, 3550 to 4700MHz, and around 5150MHz. The simulation curves 411 to 414 respectively represent the gain of the radiating device 1 in 4 frequency bands, the simulation curves 421 to 424 respectively represent the gain of the radiating device 2 in the 4 frequency band, and the simulation curves 431 to 434 respectively represent the gain of the radiating device 1 in 4 frequency bands. Fig. 4 shows that the gain of radiation device 3 is higher than the gain of radiation device 2 in any frequency band, and the gain of radiation device 2 is higher than that of radiation device 1.

Fig. 5 shows the gain of the radiation device 3 under two modes, wherein the horizontal axis represents the frequency and the vertical axis represents the gain. The simulation curves 511 to 514 respectively represent the gain of the radiation device 3 in the higher gain mode in the 4 frequency bands of the Sub-6G frequency band. The simulation curves 521 to 524 respectively represent the gain of the radiation device 3 in the lower gain mode in the 4-band of the Sub-6G frequency band. Figure 5 shows that in the higher gain mode, the radiation device 3 uses a higher gain to generate wireless signals to increase the transmission range; in the lower gain mode, the radiation device 3 uses a lower gain to generate wireless signals, which complies with safety regulations.

FIG. 6 is a block diagram of another radiation device 6 in the new embodiment. The difference between the radiation device 2 and the radiation device 1 is that the regulator 124 is used instead of the regulator 121 . The adjusters 124 are disposed along the edges of three sides of the radiator 10 to enhance the wireless signal. The adjuster 124 may be a U-shaped or other suitable shape. Although FIG. 6 shows that the adjusters 124 are disposed along the edges of three sides of the radiator 10 , the adjusters 124 may be disposed along the edges of four sides of the radiator 10 in other embodiments.

Radiation devices 1 to 3 and 6 set adjusters near the radiator 10 to enhance the wireless signal, and adjust the gain of radiation devices 1 to 3 and 6 according to whether an adjacent object is detected. When there is no adjacent object When using a higher gain to increase the transmission efficiency and transmission range of the wireless signal, use a lower gain when there are nearby objects in order to comply with the safety specification of the transmission power of the wireless signal, taking into account the transmission quality and safety of use.

1: Radiation device

10: Radiator

121: Adjuster

14: Converter

16: Antenna feed end

18: Substrate

Claims (10)

A radiation device, comprising: a radiator for receiving a feed signal from an antenna feed end and converting the feed signal into a wireless signal for transmission; a first adjuster arranged on the radiator A vicinity of the first side for enhancing the wireless signal; and a converter coupled to the first regulator and the radiator for adjusting the gain of the incoming signal according to an output signal of the first regulator . The radiation device of claim 1, wherein: when the converter detects that a delay time of the output signal of the first regulator exceeds a critical time, the converter reduces the gain of the input signal; and when the converter detects that the delay time of the output signal of the first regulator is less than or equal to the critical time, the converter increases the gain of the input signal. The radiation device of claim 1, further comprising: a second regulator coupled to the first regulator and the converter, disposed near a second side of the radiator, for enhancing the wireless signal . The radiation device of claim 3, wherein the second regulator is an L-shaped regulator. The radiation device as claimed in claim 1, further comprising: a second regulator coupled to the converter and disposed near a second side of the radiator for enhancing the wireless signal; and A third regulator, coupled to the first regulator and the second regulator, is disposed near a third side of the radiator for enhancing the wireless signal. The radiation device of claim 5, wherein the second adjuster is an L-shaped adjuster, and the third adjuster is a linear adjuster. The radiation device of claim 1, wherein the first adjuster is an L-shaped adjuster. The radiation device of claim 1, wherein the first regulator generates the output signal when receiving an input signal from the converter. A radiation device, comprising: a radiator for receiving a feed signal from an antenna feed end and converting the feed signal into a wireless signal for transmission; an adjuster arranged along the edge of the radiator, used for enhancing the wireless signal; and a converter, coupled to the regulator and the radiator, for adjusting the gain of the input signal according to the output signal of the regulator. The radiation device according to any one of claims 1 to 9, wherein the radiation device is installed in a notebook computer.

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