CN103018927A

CN103018927A - Terahertz wave switch of eight-claw ring structure

Info

Publication number: CN103018927A
Application number: CN2012105641900A
Authority: CN
Inventors: 李九生
Original assignee: China Jiliang University
Current assignee: China Jiliang University
Priority date: 2012-12-24
Filing date: 2012-12-24
Publication date: 2013-04-03
Anticipated expiration: 2032-12-24
Also published as: CN103018927B

Abstract

The invention discloses a terahertz wave switch of an eight-claw ring structure. The terahertz wave switch comprises a first signal input terminal, a laser input terminal, a signal output terminal, a substrate, a waveguide transmission band and an eight-claw ring structure waveguide, wherein the waveguide transmission band and the eight-claw ring structure waveguide are arranged on the substrate, and the eight-claw ring structure waveguide comprises a ring waveguide, a trigram rectangular coupled waveguide and J-shaped waveguides; the trigram rectangular coupled waveguide comprises eight rectangular coupled waveguide blocks which are arranged by taking the center of the ring waveguide as a center, and the tail ends of the eight rectangular coupled waveguide blocks are respectively coupled with one end of each of the eight J-shaped waveguides; and the other ends of the eight J-shaped waveguides are coupled with the ring waveguide, and terahertz wave signals are input through the first signal input terminal and output through the signal output terminal. The terahertz wave switch of the eight-claw ring structure provided by the invention has the advantages of simple structure, small size, low cost, convenience in manufacture and the like, and meets the requirements of application in the field of terahertz wave communication and the like.

Description

The THz wave switch of eight pawl circular ring structures

Technical field

The present invention relates to the THz wave switch, relate in particular to a kind of THz wave switch of eight pawl circular ring structures.

Background technology

THz wave refers to that frequency is the electromagnetic wave of 30 μ m ~ 3mm at 0.1～10 THz, wavelength, and between microwave and infrared light, in person in electronics, THz wave is also referred to as millimeter wave or submillimeter wave in electromagnetic wave spectrum; And at optical field, its far red light that is otherwise known as.THz wave is extensively to exist at occurring in nature, and about about 6 THz, the cosmic background radiation that produces in the Big Bang has half to belong to terahertz wave band to most objects heat radiation frequency at room temperature greatly.Although terahertz emission is flooded with nature; but before 20th century the mid-80s; owing to lack terahertz emission source and the effective THz wave Detection Techniques of steady running under high-energy, high-level efficiency, the room temperature; Terahertz Technology and applied research progress are very slow; relevant bibliographical information is also very few; terahertz wave band becomes a unique wave band that not yet fully develops in the broad electromagnetic wave spectrum, is called electromagnetic wave spectrum last " Terahertz space " by scientific circles.The existing microwave of THz wave, infrared light, the common properties of visible light have again the incomparable characteristic of other wave band, and these superior characteristics make THz wave have very important research value and actual application value.

The THz wave radio communication can obtain the above transmission speed speed of 10Gb/s, than current super-broadband tech more than thousand times of fast hundreds of to also, therefore following terahertz wave band wireless communication system of research and development can satisfy information society effectively to the demand of high rate ultra wideband.Yet, when using the THz wave solving practical problems, the functional devices such as terahertz waveguide, phase-modulator and switch are to realize the requisite device of whole system function, have therefore started in recent years a upsurge of studying Terahertz communication system and device in worldwide.And terahertz wave switch device is as the important devices of following THz wave communication system, correlative study so far almost or blank, so the good THz wave switch of design performance is the present trend of research.

Summary of the invention

The objective of the invention is for overcome prior art be difficult to integrated, complex structure, actual fabrication difficulty, the deficiency that cost is high provides a kind of THz wave switch of eight pawl circular ring structures.

In order to achieve the above object, technical scheme of the present invention is as follows:

The THz wave switch of eight pawl circular ring structures comprises the first signal input end, laser fan-in, signal output part, substrate, waveguide band, eight pawl circular ring structure waveguides; Substrate is provided with waveguide band, eight pawl circular ring structure waveguides, eight pawl circular ring structure waveguides are comprised of annulus waveguide, eight-trigram type rectangle coupled waveguide and J-shaped waveguide, eight-trigram type rectangle coupled waveguide comprises 8 rectangle coupled waves guide blocks, 8 rectangle coupled waves guide blocks are arranged centered by the center of annulus waveguide, the end of 8 rectangle coupled waves guide blocks is of coupled connections respectively at 8 J-shaped waveguide one ends, and the other end of 8 J-shaped waveguides is connected with the annulus waveguide-coupled; Terahertz wave signal is inputted from the first signal input end, when when adding laser and input from the laser input end, frequency is that the THz wave of 0.46THz is exported from signal output part through the waveguide band, when adding laser and input from the laser input end, frequency is that the THz wave warp of 0.46THz can not be exported from signal output part, realizes the switch on and off function.

The length of described substrate is 3000 μ m ~ 3500 μ m, and width is 1600 μ m ~ 1800 μ m.Described waveguide band, the thickness of eight pawl circular ring structure waveguides are 10 μ m ~ 15 μ m.The length of described waveguide band is 3000 μ m ~ 3500 μ m, and width is 200 μ m ~ 300 μ m.Described exradius by the annulus waveguide is 450 μ m ~ 500 μ m, and interior radius of circle is 350 μ m ~ 450 μ m.Described rectangle coupled waves guide block comprises 4 rectangular waveguides, and the length of rectangular waveguide is 80 μ m ~ 120 μ m, and width is 40 μ m ~ 60 μ m, and the distance between the rectangular waveguide is 10 μ m ~ 15 μ m.The height of described J-shaped waveguide (10) is 150 μ m ~ 200 μ m, and the radius of J-shaped lower end semicircle is 50 μ m ~ 60 μ m.

The THz wave switch of eight pawl circular ring structures of the present invention has simple in structurely, and size is little, and cost is low, is convenient to the advantages such as making.

Description of drawings:

Fig. 1 is the perspective view of the THz wave switch of eight pawl circular ring structures;

Fig. 2 is laser input end input laser synoptic diagram;

Fig. 3 is the planar structure synoptic diagram of the THz wave switch of eight pawl circular ring structures;

Fig. 4 is that eight pawl circular ring structure waveguides form structural representation;

Fig. 5 is the performance curve under the logical state of the THz wave switch of eight pawl circular ring structures;

Fig. 6 is the performance curve under the disconnected state of the THz wave switch of eight pawl circular ring structures.

Embodiment

Shown in Fig. 1 ~ 4, the THz wave switch of eight pawl circular ring structures comprises first signal input end 1, laser fan-in 2, signal output part 3, substrate 4,5, the eight pawl circular ring structure waveguides 6 of waveguide band; Substrate 4 is provided with waveguide band 5, eight pawl circular ring structure waveguides 6, eight pawl circular ring structure waveguides 6 are comprised of annulus waveguide 7, eight-trigram type rectangle coupled waveguide 8 and J-shaped waveguide 10, eight-trigram type rectangle coupled waveguide 8 comprises 8 rectangle coupled waves guide blocks 9,8 rectangle coupled waves guide blocks 9 are arranged centered by the center of annulus waveguide 7, the end of 8 rectangle coupled waves guide blocks 9 is of coupled connections respectively at 8 J-shaped waveguide 10 1 ends, and the other end of 8 J-shaped waveguides 10 and annulus waveguide 7 are of coupled connections; Terahertz wave signal is from 1 input of first signal input end, when nothing adds laser from 2 input of laser input end, frequency is that the THz wave of 0.46THz is exported from signal output part 3 through waveguide band 5, when adding laser from 2 input of laser input end, frequency is that the THz wave warp of 0.46THz can not from signal output part 3 outputs, be realized the switch on and off function.

The length of described substrate 4 is 3000 μ m ~ 3500 μ m, and width is 1600 μ m ~ 1800 μ m.The thickness of described waveguide band 5, eight pawl circular ring structure waveguides 6 is 10 μ m ~ 15 μ m.The length of described waveguide band 5 is 3000 μ m ~ 3500 μ m, and width is 200 μ m ~ 300 μ m.The exradius of described annulus waveguide 7 is 450 μ m ~ 500 μ m, and interior radius of circle is 350 μ m ~ 450 μ m.Described rectangle coupled waves guide block 9 comprises 4 rectangular waveguides, and the length of rectangular waveguide is 80 μ m ~ 120 μ m, and width is 40 μ m ~ 60 μ m, and the distance between the rectangular waveguide is 10 μ m ~ 15 μ m.The height of described J-shaped waveguide 10 is 150 μ m ~ 200 μ m, and the radius of J-shaped lower end semicircle is 50 μ m ~ 60 μ m.

Embodiment 1

The length of substrate is 3200 μ m, and width is 1800 μ m.Waveguide band, the thickness of eight pawl circular ring structure waveguides are 15 μ m.The length of waveguide band is 3200 μ m, and width is 180 μ m.The exradius of annulus waveguide is 440 μ m, and interior radius of circle is 320 μ m.Rectangle coupled waves guide block comprises 4 rectangular waveguides, and the length of rectangular waveguide is 90 μ m, and width is 40 μ m, and the distance between the rectangular waveguide is 10 μ m.The height of J-shaped waveguide is 180 μ m, and the radius of J-shaped lower end semicircle is 60 μ m.Terahertz wave signal is inputted from the first signal input end, when when adding laser and input from the laser input end, frequency is that the THz wave of 0.46THz is exported from signal output part through the waveguide band, when adding laser and input from the laser input end, frequency is that the THz wave warp of 0.46THz can not be exported from signal output part, realizes the switch on and off function.When adding laser vertical and be radiated in the eight pawl circular ring structure waveguides, the performance curve under the logical state of THz wave switch as shown in Figure 5, frequency is that the THz wave of f=0.46THz is almost loss-free from the output of THz wave output terminal, switch shows as logical; Without adding under the condition of Ear Mucosa Treated by He Ne Laser Irradiation, the performance curve under the disconnected state of THz wave switch as shown in Figure 6, frequency is that the transfer rate of the THz wave of f=0.46THz is 0.028 only, switch shows as disconnected.The THz wave switch of eight pawl circular ring structures of this explanation design has realized to frequency being the on-off function of the THz wave of f=0.46THz, and has good performance.

Claims

1. the THz wave switch of a pawl circular ring structure is characterized in that comprising first signal input end (1), laser fan-in (2), signal output part (3), substrate (4), waveguide band (5), eight pawl circular ring structure waveguides (6); Substrate (4) is provided with waveguide band (5), eight pawl circular ring structure waveguides (6), eight pawl circular ring structure waveguides (6) are by annulus waveguide (7), eight-trigram type rectangle coupled waveguide (8) and J-shaped waveguide (10) form, eight-trigram type rectangle coupled waveguide (8) comprises 8 rectangle coupled waves guide blocks (9), 8 rectangle coupled waves guide blocks (9) are arranged centered by the center of annulus waveguide (7), the end of 8 rectangle coupled waves guide blocks (9) is of coupled connections respectively at 8 J-shaped waveguides (10) one ends, and the other end of 8 J-shaped waveguides (10) and annulus waveguide (7) are of coupled connections; Terahertz wave signal is inputted from first signal input end (1), when when adding laser and input from laser input end (2), frequency is that the THz wave of 0.46THz is exported from signal output part (3) through waveguide band (5), when adding laser and input from laser input end (2), frequency is that the THz wave warp of 0.46THz can not from signal output part (3) output, be realized the switch on and off function.

2. the THz wave switch of a kind of eight pawl circular ring structures according to claim 1, the length that it is characterized in that described substrate (4) is 3000 μ m ~ 3500 μ m, width is 1600 μ m ~ 1800 μ m.

3. the THz wave switch of a kind of eight pawl circular ring structures according to claim 1 is characterized in that described waveguide band (5), and the thickness of eight pawl circular ring structure waveguides (6) is 10 μ m ~ 15 μ m.

4. the THz wave switch of a kind of eight pawl circular ring structures according to claim 1, the length that it is characterized in that described waveguide band (5) is 3000 μ m ~ 3500 μ m, width is 200 μ m ~ 300 μ m.

5. the THz wave switch of a kind of eight pawl circular ring structures according to claim 1 is characterized in that described exradius by annulus waveguide (7) is 450 μ m ~ 500 μ m, and interior radius of circle is 350 μ m ~ 450 μ m.

6. the THz wave switch of a kind of eight pawl circular ring structures according to claim 1, it is characterized in that described rectangle coupled waves guide block (9) comprises 4 rectangular waveguides, the length of rectangular waveguide is 80 μ m ~ 120 μ m, width is 40 μ m ~ 60 μ m, and the distance between the rectangular waveguide is 10 μ m ~ 15 μ m.

7. the THz wave switch of a kind of eight pawl circular ring structures according to claim 1, the height that it is characterized in that described J-shaped waveguide (10) is 150 μ m ~ 200 μ m, the radius of J-shaped lower end semicircle is 50 μ m ~ 60 μ m.