Apparatus embedded with terahertz transceivers using resonant tunnelling diodes

1. An apparatus communicating wirelessly with a remote device, the apparatus comprising:

an antenna set;

one or more terahertz transceivers coupled to the antenna set to exchange signals with the remote device in one or more predefined frequency bands, wherein each of the terahertz transceivers comprises:

at least one resonant tunnelling diode in double-barrier quantum well structure with predefined dimensions, some or all of the dimensions are adjusted in accordance with a predefined resonant frequency;

a slot antenna, coupled to the resonant tunnelling diode, forming a standing wave of electromagnetic field as a resonator to output a resonant signal in the predefined resonant frequency;

a band filter to process the resonant signal and output a terahertz (THz) signal after amplified;

a local oscillator receiving the THz signal and producing a reference signal; and

an I/O mixer provided to modulate the reference signal with a signal.

2. The apparatus as recited in claim 1 , wherein the resonant tunnelling diode includes a quantum well limited by two walls, some or all of dimensions of the walls are predefined using epitaxial growth and microfabrication in accordance of the predefined resonant frequency.

3. The apparatus as recited in claim 1 , wherein the antenna set includes a first antenna and a second antenna, the first antenna and second antenna are in different forms, one for transmission and the other for reception.

4. The apparatus as recited in claim 3 , wherein at least one of the first and second antennas is planar.

5. The apparatus as recited in claim 1 , further comprising:

at least one microdisplay generating optical images;

a display device receiving the optical images coupled in via at least a lens; and

an electronic portion, providing control signals and various data to drive the microdisplay, coupled to the terahertz transceivers that facilitates wireless communication between the apparatus and the remote device.

6. The apparatus as recited in claim 5 , further comprising:

an interface to receive signal to drive the electronic portion or output data signal from the electronic portion.

7. The apparatus as recited in claim 6 , wherein the interface is based upon a USB Type-C.

8. An apparatus communicating wirelessly with a remote device, the apparatus comprising:

an antenna set;

one or more terahertz transceivers coupled to the antenna set to exchange signals with the remote device in one or more predefined frequency bands, wherein each of the terahertz transceivers comprises:

at least one resonant tunnelling diode in double-barrier quantum well structure with predefined dimensions, wherein the resonant tunnelling diode includes a quantum well limited by two walls, some or all of dimensions of the walls are predefined using epitaxial growth and microfabrication in accordance of a predefined resonant frequency;

a slot antenna, coupled to the resonant tunnelling diode, forming a standing wave of electromagnetic field as a resonator to output a resonant signal in the predefined resonant frequency, and

a band filter to process the resonant signal and output a terahertz (THz) signal after amplified.

9. The apparatus as recited in claim 8 , wherein the each of the terahertz transceivers further comprises: a local oscillator receiving the THz signal and produce a reference signal, and an I/O mixer provided to modulate the reference signal with a signal.

10. The apparatus as recited in claim 8 , wherein the antenna set includes a first antenna and a second antenna, the first antenna and second antenna are in different forms, one for transmission and the other for reception.

11. The apparatus as recited in claim 10 , wherein at least one of the first and second antennas is planar.

12. The apparatus as recited in claim 8 , further comprising:

at least one microdisplay generating optical images;

a display device receiving the optical images coupled in via at least a lens;

an electronic portion, providing control signals and various data to drive the microdisplay, coupled to the terahertz transceivers that facilitates wireless communication between the apparatus and the remote device.

13. The apparatus as recited in claim 12 , further comprising:

an interface to receive signal to drive the electronic portion or output data signal from the electronic portion.

14. The apparatus as recited in claim 13 , wherein the interface is based upon a USB Type-C.