Integrated broadband antenna

Abstract

The present application provides an integrated broadband antenna, which includes a first conductor layer, a first conductor plate, a second conductor plate, a feed conductor structure and a signal source. The first conductor plate has a first coupling edge and a first connecting edge. The first connecting edge is electrically connected to the first conductor layer through a first short circuit structure. The second conductor plate has a second coupling edge and a second connecting edge. The second connecting edge is electrically connected to the first conductor layer through a second short circuit structure. The second coupling edge and the first coupling edge have a third distance to form a resonant slot. The feed conductor structure is located in the resonant slot and has a first conductor segment, a second conductor segment and a third conductor segment. The third conductor segment is electrically connected to the first conductor segment and the second conductor segment. The signal source is electrically coupled to the feed conductor structure. The signal source excites the integrated broadband antenna to generate multiple resonance modes covering at least a first communication frequency band.

Description

Technical Field

[0001] The technical field to which this invention pertains relates to an integrated broadband antenna design, and more particularly to an integrated broadband antenna design architecture capable of achieving multi-antenna integration. Background Technology

[0002] The need to improve wireless communication quality and data transmission rates has led to the development of broadband antenna designs. Furthermore, with the advancement of MIMO (Multi-Input Multi-Output System) multi-antenna architectures and beamforming technologies...

[0003] The application of antenna array architectures is becoming increasingly widespread. Wideband antenna design with the advantages of multi-antenna array integration has become a hot research topic. However, successfully designing a highly integrated multi-antenna array from broadband antenna elements while simultaneously achieving good matching and isolation remains a significant technical challenge.

[0004] Multiple adjacent antennas operating in the same frequency band may experience mutual coupling interference and interference from the surrounding environment. This can lead to decreased isolation between antennas and a deterioration in their radiation characteristics. Consequently, data transmission speed decreases, and the integration of multiple antennas becomes more difficult.

[0005] Some prior art documents have proposed designing periodic structures as energy isolators on the ground between multiple antennas to improve energy isolation and immunity to interference from the surrounding environment. However, this design approach may introduce process instability, potentially increasing mass production costs. It may also induce additional coupling currents, leading to increased correlation coefficients between antennas. Furthermore, it may increase the overall size of the multi-antenna array, making it less suitable for implementation in various wireless devices or equipment.

[0006] Therefore, a design approach is needed to solve these problems in order to meet the practical application needs of future high-speed data transmission communication devices or equipment. Summary of the Invention

[0007] In view of this, the present disclosure provides an integrated broadband antenna. Some practical examples of the embodiments can solve the aforementioned technical problems.

[0008] According to one embodiment, this disclosure proposes an integrated broadband antenna. The integrated broadband antenna includes a first conductor layer, a first conductor plate, a second conductor plate, a feed conductor structure, and a signal source. The first conductor plate has a first coupling edge and a first connection edge. The first connection edge is electrically connected to the first conductor layer via a first short-circuit structure, and a first spacing exists between the first conductor plate and the first conductor layer. The second conductor plate has a second coupling edge and a second connection edge. The second connection edge is electrically connected to the first conductor layer via a second short-circuit structure, and a second spacing exists between the second conductor plate and the first conductor layer. A third spacing forms a resonant slot between the second coupling edge and the first coupling edge. The feed conductor structure is located within the resonant slot and has a first conductor segment, a second conductor segment, and a third conductor segment. A first coupling spacing exists between the first conductor segment and the first coupling edge. A second coupling spacing exists between the second conductor segment and the second coupling edge. The third conductor segment is electrically connected to the first conductor segment and the second conductor segment. The signal source is electrically coupled to the feed conductor structure, and the signal source excites the integrated broadband antenna to generate multiple resonant modes. The multiple resonant modes cover at least one first communication frequency band. Attached Figure Description

[0009] To provide a better understanding of the above and other aspects of this case, specific embodiments are provided below, along with accompanying drawings, for detailed explanation:

[0010] Figure 1A This is a structural diagram of an integrated broadband antenna 1 according to an embodiment of the present disclosure.

[0011] Figure 1B This is a return loss curve of an integrated broadband antenna 1 according to an embodiment of the present disclosure.

[0012] Figure 1C This is a radiation efficiency curve of an integrated broadband antenna 1 according to an embodiment of the present disclosure.

[0013] Figure 2A This is a structural diagram of an integrated broadband antenna 2 according to an embodiment of the present disclosure.

[0014] Figure 2B This is a return loss curve of an integrated broadband antenna 2 according to an embodiment of the present disclosure.

[0015] Figure 3A This is a structural diagram of an integrated broadband antenna 3 according to an embodiment of the present disclosure.

[0016] Figure 3B This is a return loss curve of an integrated broadband antenna 3 according to an embodiment of the present disclosure.

[0017] Figure 4AThis is a structural diagram of an embodiment of the present disclosure, in which three integrated broadband antennas 1 are connected in series to form an integrated broadband antenna array 4.

[0018] Figure 4B The diagram shows the return loss curve of an integrated broadband antenna array 4 formed by connecting three integrated broadband antennas 1 in series according to an embodiment of this disclosure.

[0019] Figure 4C This is an isolation curve diagram of three integrated broadband antennas 1 connected in series to form an integrated broadband antenna array 4 according to an embodiment of this disclosure.

[0020] The labels in the diagram are explained as follows:

[0021] 1, 2, 3: Integrated broadband antenna

[0022] 4: Integrated broadband antenna array

[0023] 11, 21, 31: First conductor layer

[0024] 12, 22, 32: First conductor plate

[0025] 121, 221, 321: First coupling edge

[0026] 122, 222, 322: First connecting edge

[0027] 123, 223, 323: First short-circuit structure

[0028] 324: Third conductor plate

[0029] 3241: Third short-circuit structure

[0030] 13, 23, 33: Second conductor plate

[0031] 131, 231, 331: Second coupling edge

[0032] 132, 232, 332: Second connecting edge

[0033] 133, 233, 333: Second short-circuit structure

[0034] 334: Fourth Conductor Plate

[0035] 3341: Fourth Short-Circuit Structure

[0036] 3233: Dielectric substrate

[0037] 14, 24, 34: Resonance slotted holes

[0038] 15, 25, 35: Feed conductor structure

[0039] 151, 251, 351: First conductor segment

[0040] 152, 252, 352: Second conductor segment

[0041] 153, 253, 353: Third conductor segment

[0042] 16, 26, 36, 461, 462, 463: Signal sources

[0043] 17, 27, 37, 471, 472, 473: Multiple resonant modes

[0044] 171: Radiation efficiency curve

[0045] 18, 28, 38, 48: First communication frequency band

[0046] 1612, 1613, 1623: Isolation Curves

[0047] d1: First spacing

[0048] d2: Second spacing

[0049] d3: Third spacing

[0050] s1: First coupling spacing

[0051] s2: Second coupling spacing

[0052] s3: Third coupling spacing

[0053] s4: Fourth coupling spacing Detailed Implementation

[0054] Figure 1A This is a structural diagram of an integrated broadband antenna 1 according to an embodiment of this disclosure. Figure 1AAs shown, the integrated broadband antenna 1 includes a first conductor layer 11, a first conductor plate 12, a second conductor plate 13, a feed conductor structure 15, and a signal source 16. The first conductor plate 12 has a first coupling edge 121 and a first connecting edge 122. The first connecting edge 122 is electrically connected to the first conductor layer 11 via a first short-circuit structure 123, and a first spacing d1 exists between the first conductor plate 12 and the first conductor layer 11. The second conductor plate 13 has a second coupling edge 131 and a second connecting edge 132. The second connecting edge 132 is electrically connected to the first conductor layer 11 via a second short-circuit structure 133, and a second spacing d2 exists between the second conductor plate 13 and the first conductor layer 11. A third spacing d3 between the second coupling edge 131 and the first coupling edge 121 forms a resonant slot 14. Both the first short-circuit structure 123 and the second short-circuit structure 133 are composed of multiple conductor lines. The feed conductor structure 15 is located in the resonant slot 14 and has a first conductor segment 151, a second conductor segment 152, and a third conductor segment 153. The first conductor segment 151 has a first coupling distance s1 with the first coupling edge 121. The second conductor segment 152 has a second coupling distance s2 with the second coupling edge 131. The third conductor segment 153 is electrically connected to the first conductor segment 151 and the second conductor segment 152. The signal source 16 is electrically coupled to the feed conductor structure 15 and excites the integrated broadband antenna 1 to generate multiple resonant modes 17 (such as...). Figure 1B (As shown). The multi-resonance mode 17 covers at least one first communication frequency band 18 (e.g. Figure 1B(As shown). The signal source 16 is a transmission line, impedance matching circuit, amplifier circuit, feed network, switching circuit, connector assembly, filter circuit, integrated circuit chip, or RF front-end module. The areas of the first conductor plate 12 and the second conductor plate 13 are both between 0.1 wavelength squared and 0.35 wavelength squared of the lowest operating frequency of the first communication frequency band 18. The distances of the first spacing d1 and the second spacing d2 are both between 0.005 wavelength and 0.18 wavelength of the lowest operating frequency of the first communication frequency band 18. The lengths of the first conductor segment 151 and the second conductor segment 152 are both between 0.03 wavelength and 0.38 wavelength of the lowest operating frequency of the first communication frequency band 18. The distances of the first coupling spacing s1 and the second coupling spacing s2 are both between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication frequency band 18. The second connection edge 132 of the integrated broadband antenna 1 can be electrically connected to the first connection edge 122 of another set of integrated broadband antennas 1, and can be repeatedly connected in series to form an integrated broadband antenna array. The integrated broadband antenna array can be applied to a multiple input multiple output antenna system or a beamforming antenna system.

[0055] To achieve high integration and wide bandwidth, this disclosure discloses an integrated broadband antenna 1. First, a first conductor plate 12 and a second conductor plate 13 are electrically connected to the first conductor layer 11. Then, a resonant slot 14 is formed between the second coupling edge 131 and the first coupling edge 121. This creates an integrated antenna radiation architecture combining plate current and slotted magnetic current, effectively increasing the operating bandwidth of the multi-resonant mode 17. The integrated broadband antenna 1 also incorporates a first conductor segment 151, a second conductor segment 152, and a third conductor segment 153 in its feed conductor structure 15. A first coupling distance s1 is designed between the first conductor segment 151 and the first coupling edge 121, and a second coupling distance s2 is designed between the second conductor segment 152 and the second coupling edge 131. This allows the plate current and slotted magnetic current to coexist and be excited effectively, thus achieving good impedance matching for the multi-resonant mode 17. Furthermore, the designed first short-circuit structure 123 and the second short-circuit structure 133 can effectively suppress the leakage electric field energy of the first connection edge 122 and the second connection edge 132, improving the energy isolation of multiple integrated broadband antennas 1 in close proximity. Therefore, the second connection edge 132 can be electrically connected to the first connection edge 122 of another set of integrated broadband antennas 1, and can be repeatedly connected in series to form an integrated broadband antenna array. This integrated broadband antenna array can be applied to multiple-input multiple-output antenna systems or beamforming antenna systems. Therefore, an embodiment of the integrated broadband antenna 1 disclosed herein can successfully achieve the technical effects of broadband and high integration.

[0056] Figure 1B This is a return loss curve of an integrated broadband antenna 1 according to an embodiment of this disclosure. The following dimensions were selected for the experiment: the areas of both the first conductive plate 12 and the second conductive plate 13 are approximately 182 mm². 2 The distance between the first spacing d1 and the second spacing d2 is approximately 2 mm; the distance between the third spacing d3 is approximately 3.5 mm; the length of the first conductor segment 151 is approximately 9 mm; the length of the second conductor segment 152 is approximately 5.3 mm; the distance between the first coupling spacing s1 and the second coupling spacing s2 is approximately 0.2 mm. Figure 1B As shown, the signal source 16 excites the integrated broadband antenna 1 to generate well-matched multi-resonant modes 17, which cover at least one first communication frequency band 18. In this embodiment, the frequency range of the first communication frequency band 18 is 5150MHz to 5875MHz, and the lowest operating frequency of the first communication frequency band 18 is 5150MHz. Figure 1C This is a graph showing the radiation efficiency of an integrated broadband antenna 1 according to an embodiment of this disclosure. Figure 1C As shown, the multi-resonant mode 17 generated by the signal source 16 excited by the integrated broadband antenna 1 has good radiation efficiency.

[0057] Figure 1B The communication frequency band operations and experimental data covered are only for experimental demonstration purposes. Figure 1A The present invention discloses an embodiment of an integrated broadband antenna 1. This is not intended to limit the communication frequency band operation, application, and specifications that the integrated broadband antenna 1 can cover in practical applications. The second connection edge 132 of the integrated broadband antenna 1 can be electrically connected to the first connection edge 122 of another set of the integrated broadband antenna 1, and can be repeatedly cascaded to form an integrated broadband antenna array. This integrated broadband antenna array can be applied to multiple-input multiple-output antenna systems or beamforming antenna systems.

[0058] Figure 2A This is a structural diagram of an integrated broadband antenna 2 according to an embodiment of this disclosure. Figure 2AAs shown, the integrated broadband antenna 2 includes a first conductor layer 21, a first conductor plate 22, a second conductor plate 23, a feed conductor structure 25, and a signal source 26. The first conductor plate 22 has a first coupling edge 221 and a first connecting edge 222. The first connecting edge 222 is electrically connected to the first conductor layer 21 via a first short-circuit structure 223, and a first spacing d1 exists between the first conductor plate 22 and the first conductor layer 21. The second conductor plate 23 has a second coupling edge 231 and a second connecting edge 232. The second connecting edge 232 is electrically connected to the first conductor layer 21 via a second short-circuit structure 233, and a second spacing d2 exists between the second conductor plate 23 and the first conductor layer 21. A third spacing d3 between the second coupling edge 231 and the first coupling edge 221 forms a resonant slot 24. The first short-circuit structure 223 consists of two conductor sheets. The second short-circuit structure 233 consists of one conductor sheet. The feed conductor structure 25 is located in the resonant slot 24 and has a first conductor segment 251, a second conductor segment 252, and a third conductor segment 253. The first conductor segment 251 has a first coupling distance s1 with the first coupling edge 221. The second conductor segment 252 has a second coupling distance s2 with the second coupling edge 231. The third conductor segment 253 is electrically connected to the first conductor segment 251 and the second conductor segment 252. The signal source 26 is electrically coupled to the feed conductor structure 25 and excites the integrated broadband antenna 2 to generate multiple resonant modes 27 (such as...). Figure 2B (As shown). The multi-resonance mode 27 covers at least one first communication frequency band 28 (e.g., Figure 2B(As shown). The signal source 26 is a transmission line, impedance matching circuit, amplifier circuit, feed network, switching circuit, connector assembly, filter circuit, integrated circuit chip, or RF front-end module. The areas of the first conductor plate 22 and the second conductor plate 23 are both between 0.1 wavelength squared and 0.35 wavelength squared of the lowest operating frequency of the first communication frequency band 28. The distances of the first spacing d1 and the second spacing d2 are both between 0.005 wavelength and 0.18 wavelength of the lowest operating frequency of the first communication frequency band 28. The lengths of the first conductor segment 251 and the second conductor segment 252 are both between 0.03 wavelength and 0.38 wavelength of the lowest operating frequency of the first communication frequency band 28. The distances of the first coupling spacing s1 and the second coupling spacing s2 are both between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication frequency band 28. The second connection edge 232 of the integrated broadband antenna 2 can be electrically connected to the first connection edge 222 of another set of integrated broadband antennas 2, and can be repeatedly connected in series to form an integrated broadband antenna array. The integrated broadband antenna array can be applied to a multiple input multiple output antenna system or a beamforming antenna system.

[0059] Figure 2AThis disclosure presents an embodiment of an integrated broadband antenna 2. Although the shapes of the first conductive plate 22, the second conductive plate 23, and the feed conductor structure 25 are not entirely the same as those of the integrated broadband antenna 1, and the first short-circuit structure 223 and the second short-circuit structure 233 are composed of conductive sheets, the integrated broadband antenna 2 also designs the first conductive plate 22 and the second conductive plate 23 to be electrically connected to the first conductive layer 21, and then designs a resonant slot 24 to be formed between the second coupling edge 231 and the first coupling edge 221. In this way, an integrated antenna radiation architecture of plate current and slot magnetic current can be formed, which can effectively increase the operating bandwidth of the multi-resonant mode 27. The integrated broadband antenna 2 also designs the feed conductor structure 25 to have the first conductor segment 251, the second conductor segment 252, and the third conductor segment 253. The first conductor segment 251 and the first coupling edge 221 are designed with a first coupling distance s1, and the second conductor segment 252 and the second coupling edge 231 are designed with a second coupling distance s2, so that the designed planar current and the slotted magnetic current can coexist and be excited well, thus achieving good impedance matching for the multi-resonance mode 27. Furthermore, the designed first short-circuit structure 223 and the second short-circuit structure 233 can effectively suppress the leakage electric field energy of the first connection edge 222 and the second connection edge 232, improving the energy isolation of multiple integrated broadband antennas 2 in close proximity. Therefore, the second connection edge 232 can be electrically connected to the first connection edge 222 of another set of integrated broadband antennas 2, and repeatedly connected in series to form an integrated broadband antenna array. This integrated broadband antenna array can be applied to multiple input multiple output antenna systems or beamforming antenna systems. Therefore, in one embodiment of this disclosure, the integrated broadband antenna 2 can also achieve the technical benefits of broadband and high integration.

[0060] Figure 2B This is a return loss curve of an integrated broadband antenna 2 according to an embodiment of this disclosure. The following dimensions were selected for the experiment: the area of ​​both the first conductive plate 22 and the second conductive plate 23 is approximately 145 mm². 2 The distance between the first spacing d1 and the second spacing d2 is approximately 1.5 mm; the distance between the third spacing d3 is approximately 3.5 mm; the length of the first conductor segment 251 is approximately 11.5 mm; the length of the second conductor segment 252 is approximately 4.1 mm; the distance between the first coupling spacing s1 and the second coupling spacing s2 is approximately 0.18 mm. Figure 2BAs shown, the signal source 26 excites the integrated broadband antenna 2 to generate a well-matched multi-resonant mode 27, which covers at least one first communication frequency band 28. In this embodiment, the frequency range of the first communication frequency band 28 is 5150MHz to 5875MHz, and the lowest operating frequency of the first communication frequency band 28 is 5150MHz.

[0061] Figure 2B The communication frequency band operations and experimental data covered are only for experimental demonstration purposes. Figure 2A The present invention discloses an embodiment of an integrated broadband antenna 2. This is not intended to limit the communication frequency band operation, application, and specifications that the integrated broadband antenna 2 can cover in practical applications. The second connection edge 232 of the integrated broadband antenna 2 can be electrically connected to another set of the first connection edges 222 of the integrated broadband antenna 2, and can be repeatedly cascaded to form an integrated broadband antenna array, which can be applied to a multiple-input multiple-output antenna system or a beamforming antenna system.

[0062] Figure 3A This is a structural diagram of an integrated broadband antenna 3 according to an embodiment of this disclosure. Figure 3AAs shown, the integrated broadband antenna 3 includes a first conductor layer 31, a first conductor plate 32, a second conductor plate 33, a feed conductor structure 35, and a signal source 36. The first conductor plate 32 has a first coupling edge 321 and a first connecting edge 322. The first connecting edge 322 is electrically connected to the first conductor layer 31 via a first short-circuit structure 323, and a first spacing d1 exists between the first conductor plate 32 and the first conductor layer 31. The second conductor plate 33 has a second coupling edge 331 and a second connecting edge 332. The second connecting edge 332 is electrically connected to the first conductor layer 31 via a second short-circuit structure 333, and a second spacing d2 exists between the second conductor plate 33 and the first conductor layer 31. A third spacing d3 between the second coupling edge 331 and the first coupling edge 321 forms a resonant slot 34. The first short-circuit structure 323 is composed of a single conductor sheet. The second short-circuit structure 333 is composed of multiple conductor lines. The feed conductor structure 35 is located in the resonant slot 34 and has a first conductor segment 351, a second conductor segment 352, and a third conductor segment 353. The first conductor segment 351 has a first coupling distance s1 with the first coupling edge 321. The second conductor segment 352 has a second coupling distance s2 with the second coupling edge 331. The third conductor segment 353 is electrically connected to the first conductor segment 351 and the second conductor segment 352. The first conductor plate 32, the second conductor plate 33, and the feed conductor structure 35 can be formed on a single-layer or multi-layer dielectric substrate. The signal source 36 is electrically coupled to the feed conductor structure 35 and excites the integrated broadband antenna 3 to generate multiple resonant modes 37 (such as...). Figure 3B (As shown). The multi-resonance mode 37 covers at least one first communication frequency band 38 (e.g. Figure 3B(As shown). The signal source 36 is a transmission line, impedance matching circuit, amplifier circuit, feed network, switching circuit, connector assembly, filter circuit, integrated circuit chip, or RF front-end module. The first conductor plate 32, the second conductor plate 33, and the feed conductor structure 35 are formed on a single-layer dielectric substrate 3233. The integrated broadband antenna 3 also has a third conductor plate 324 electrically connected to the first conductor layer 31 through a third short-circuit structure 3241, and a third coupling distance s3 between the third conductor plate 324 and the first conductor plate 31. The third short-circuit structure 3241 is composed of two conductor lines, and the distance of the third coupling distance s3 is between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication frequency band 38. The integrated broadband antenna 3 also has a fourth conductor plate 334 electrically connected to the first conductor layer 31 through a third short-circuit structure 3341, and a fourth coupling distance s4 between the third conductor plate 334 and the first conductor plate 31. The third short-circuit structure 3341 consists of a conductor plate. The distance of the fourth coupling spacing s4 is between 0.001 wavelength and 0.05 wavelength at the lowest operating frequency of the first communication band 38. The areas of the first conductor plate 32 and the second conductor plate 33 are both between 0.1 wavelength squared and 0.35 wavelength squared at the lowest operating frequency of the first communication band 38. The distances of the first spacing d1 and the second spacing d2 are both between 0.005 wavelength and 0.18 wavelength at the lowest operating frequency of the first communication band 38. The lengths of the first conductor segment 351 and the second conductor segment 352 are both between 0.03 wavelength and 0.38 wavelength at the lowest operating frequency of the first communication band 38. The distances of the first coupling spacing s1 and the second coupling spacing s2 are both between 0.001 wavelength and 0.05 wavelength at the lowest operating frequency of the first communication band 38. The second connection edge 332 of the integrated broadband antenna 3 can be electrically connected to the first connection edge 322 of another set of integrated broadband antennas 3, and can be repeatedly connected in series to form an integrated broadband antenna array. The integrated broadband antenna array can be applied to a multiple input multiple output antenna system or a beamforming antenna system.

[0063] Figure 3AThis disclosure presents an embodiment of an integrated broadband antenna 3, although the shapes of the second conductor plate 33 and the feed conductor structure 35 are not entirely the same as those of the integrated broadband antenna 1. Furthermore, the first short-circuit structure 323 is composed of a single conductor sheet. The integrated broadband antenna 3 also has a third conductor plate 324 and a fourth conductor plate 334. However, the integrated broadband antenna 3 also designs the first conductor plate 32 and the second conductor plate 33 to be electrically connected to the first conductor layer 31, and then designs a resonant slot 34 between the second coupling edge 331 and the first coupling edge 321. This allows for the formation of an integrated antenna radiation architecture combining plate current and slotted magnetic current, effectively increasing the operating bandwidth of the multi-resonant mode 37. The integrated broadband antenna 3 also designs the feed conductor structure 35 to have a first conductor segment 351, a second conductor segment 352, and a third conductor segment 353. The first conductor segment 351 and the first coupling edge 321 are designed with a first coupling distance s1, and the second conductor segment 352 and the second coupling edge 331 are designed with a second coupling distance s2, so that the designed planar current and the slotted magnetic current can coexist and be excited well, thus achieving good impedance matching for the multi-resonance mode 37. Furthermore, the designed first short-circuit structure 323 and the second short-circuit structure 333 can effectively suppress the leakage electric field energy of the first connecting edge 322 and the second connecting edge 332, improving the energy isolation of multiple integrated broadband antennas 3 in close proximity. Therefore, the second connecting edge 332 can be electrically connected to the first connecting edge 322 of another set of integrated broadband antennas 3, and repeatedly connected in series to form an integrated broadband antenna array. This integrated broadband antenna array can be applied to multiple input multiple output antenna systems or beamforming antenna systems. Therefore, in one embodiment of this disclosure, the integrated broadband antenna 3 can also achieve the technical benefits of broadband and high integration.

[0064] Figure 3B This is a return loss curve of an integrated broadband antenna 3 according to an embodiment of this disclosure. The following dimensions were selected for the experiment: the area of ​​the first conductor plate 32 is approximately 159 mm². 2 The area of ​​the second conductor plate 33 is approximately 132 mm². 2 The distance between the first spacing d1 and the second spacing d2 is approximately 0.5 mm; the distance between the third spacing d3 is approximately 3.6 mm; the length of the first conductor segment 351 is approximately 16.5 mm; the length of the second conductor segment 352 is approximately 6.6 mm; the distance between the first coupling spacing s1 and the second coupling spacing s2 is approximately 0.2 mm; the distance between the third coupling spacing s3 and the fourth coupling spacing s4 is approximately 1.1 mm. Figure 3BAs shown, the signal source 36 excites the integrated broadband antenna 3 to generate well-matched multi-resonant modes 37, which cover at least one first communication frequency band 38. In this embodiment, the frequency range of the first communication frequency band 38 is 5150MHz to 7125MHz, and the lowest operating frequency of the first communication frequency band 38 is 5150MHz.

[0065] Figure 3B The communication frequency band operations and experimental data covered are only for experimental demonstration purposes. Figure 3A The present invention discloses an embodiment of an integrated broadband antenna 3. This is not intended to limit the communication frequency band operation, application, and specifications that the integrated broadband antenna 3 can cover in practical applications. The second connection edge 332 of the integrated broadband antenna 3 can be electrically connected to the first connection edge 322 of another set of integrated broadband antennas 3, and can be repeatedly cascaded to form an integrated broadband antenna array. This integrated broadband antenna array can be applied to multiple-input multiple-output antenna systems or beamforming antenna systems.

[0066] Figure 4A In one embodiment of this disclosure, three sets of the integrated broadband antenna 1 (such as...) Figure 1A The diagram shows a structure of an integrated broadband antenna array 4 formed by cascading connections. The second connection edge 132 of this integrated broadband antenna 4 is electrically connected to the first connection edge 122 of another set of integrated broadband antennas 1, and these three sets are repeatedly cascaded to form the integrated broadband antenna array 4. This integrated broadband antenna array 4 can be applied to multiple-input multiple-output antenna systems or beamforming antenna systems. Figure 4A In the implementation example, the three integrated broadband antennas respectively have signal source 161, signal source 162, and signal source 163. Signal source 161 excites and generates multiple resonant modes 471, signal source 162 excites and generates multiple resonant modes 472, and signal source 163 excites and generates multiple resonant modes 473 (e.g., ...). Figure 4B (As shown).

[0067] exist Figure 4A In the implementation example, although three sets of the integrated broadband antenna 1 are connected in series (such as...) Figure 1A As shown), however, each of these integrated broadband antennas 1 is also designed with the first conductor plate 12 and the second conductor plate 13 electrically connected to the first conductor layer 11, and a resonant slot 14 is formed between the second coupling edge 131 and the first coupling edge 121. This creates an integrated antenna radiation architecture combining plate current and slotted magnetic current, effectively increasing the operating bandwidth of the multiple resonant modes 471, 472, and 473 (e.g., ...). Figure 4B(As shown). Each set of integrated broadband antennas 1 is also designed with a feed conductor structure 15 having a first conductor segment 151, a second conductor segment 152, and a third conductor segment 153. The first conductor segment 151 is designed to have a first coupling distance s1 between it and the first coupling edge 121, and the second conductor segment 152 is designed to have a second coupling distance s2 between it and the second coupling edge 131. This allows the designed planar current and the slotted magnetic current to coexist and be excited well, thus enabling the multiple resonant modes 471, 472, and 473 to achieve good impedance matching (e.g., Figure 4B (As shown). Furthermore, each set of the designed first short-circuit structure 123 and the second short-circuit structure 133 can effectively suppress the leakage electric field energy of the first connection edge 122 and the second connection edge 132, improving the energy isolation of multiple sets of integrated broadband antennas in close proximity. Therefore... Figure 4A Each of these integrated broadband antennas can successfully achieve the technical benefits of broadband and high integration.

[0068] Figure 4B as well as Figure 4C The diagram shows the return loss curve and isolation curve for three sets of integrated broadband antennas 1 connected in series to form an integrated broadband antenna array 4. Figure 4A and Figure 4B As shown, signal source 161 excites and generates multiple resonant modes 471, signal source 162 excites and generates multiple resonant modes 472, and signal source 163 excites and generates multiple resonant modes 473. Figure 4B As shown, the three sets of integrated broadband antennas 1 can each generate well-matched multi-resonant modes 471, 472, and 473, and each of these three sets of multi-resonant modes 471, 472, and 473 covers at least one first communication frequency band 48. In this embodiment, the frequency range of the first communication frequency band 48 is 5150MHz to 5875MHz, and the lowest operating frequency of the first communication frequency band 48 is 5150MHz. Figure 4A and Figure 4C As shown, the isolation curve between signal source 161 and signal source 162 is 1612, the isolation curve between signal source 162 and signal source 163 is 1623, and the isolation curve between signal source 161 and signal source 163 is 1613. Figure 4C As shown, the three sets of integrated broadband antennas 1 can achieve good isolation.

[0069] Figure 4B as well as Figure 4C The communication frequency band operations and experimental data covered are only for experimental demonstration purposes. Figure 4AThe present invention discloses the technical efficacy of three integrated broadband antennas 1 connected in series to form an integrated broadband antenna array 4. This is not intended to limit the communication frequency band operation, application, and specifications that the integrated broadband antenna array 4 can cover in practical applications.

Claims

1. An integrated broadband antenna, comprising: First conductor layer; A first conductor plate has a first coupling edge and a first connecting edge, the first connecting edge being electrically connected to the first conductor layer via a first short-circuit structure, and a first spacing being present between the first conductor plate and the first conductor layer; The second conductor plate has a second coupling edge and a second connecting edge, the second connecting edge being electrically connected to the first conductor layer via a second short-circuit structure. The second conductor plate and the first conductor layer have a second spacing, and the second coupling edge and the first coupling edge have a third spacing forming a resonant slot. A feed conductor structure is located within the resonant slot and has a first conductor segment, a second conductor segment, and a third conductor segment. The first conductor segment has a first coupling distance to the first coupling edge, the second conductor segment has a second coupling distance to the second coupling edge, and the third conductor segment is electrically connected to the first and second conductor segments. A signal source, electrically coupled to the feed conductor structure, excites the integrated broadband antenna to generate multiple resonant modes, the multiple resonant modes covering at least one first communication frequency band. wherein The area of ​​the first conductor plate is between 0.1 wavelength squared and 0.35 wavelength squared at the lowest operating frequency of the first communication band.

2. The integrated broadband antenna of claim 1, wherein, The first short-circuit structure and the second short-circuit structure are composed of one or more conductor sheets or conductor wires.

3. The integrated broadband antenna of claim 1, wherein, The area of ​​the second conductor plate is between 0.1 wavelength squared and 0.35 wavelength squared at the lowest operating frequency of the first communication band.

4. The integrated broadband antenna of claim 1, wherein, The distance of the first gap is between 0.005 wavelengths and 0.18 wavelengths of the lowest operating frequency of the first communication band.

5. The integrated broadband antenna of claim 1, wherein, The distance of the second gap is between 0.005 wavelengths and 0.18 wavelengths of the lowest operating frequency of the first communication band.

6. The integrated wideband antenna of claim 1, wherein, The distance of the third gap is between 0.001 wavelength and 0.15 wavelength of the lowest operating frequency of the first communication band.

7. The integrated broadband antenna of claim 1, wherein, The length of the first conductor segment is between 0.03 and 0.38 wavelengths of the lowest operating frequency of the first communication band.

8. The integrated broadband antenna of claim 1, wherein, The length of the second conductor segment is between 0.03 and 0.38 wavelengths of the lowest operating frequency of the first communication band.

9. The integrated broadband antenna of claim 1, wherein, The distance of the first coupling gap is between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication band.

10. The integrated wideband antenna of claim 1, wherein, The distance of the second coupling gap is between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication band.

11. The integrated wideband antenna of claim 1, wherein, The signal source can be a transmission line, impedance matching circuit, amplifier circuit, feed network, switching circuit, connector assembly, filter circuit, integrated circuit chip or RF front-end module.

12. The integrated wideband antenna of claim 1, wherein, A third conductor plate is electrically connected to the first conductor layer via a third short-circuit structure, and there is a third coupling gap between the third conductor plate and the first conductor plate.

13. The integrated wideband antenna of claim 12, wherein, The third short-circuit structure consists of one or more conductor sheets or conductor lines, and the distance of the third coupling gap is between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication band.

14. The integrated wideband antenna of claim 1, wherein, The fourth conductor plate is electrically connected to the first conductor layer via a fourth short-circuit structure, and there is a fourth coupling gap between the fourth conductor plate and the second conductor plate.

15. The integrated wideband antenna of claim 14, wherein, The fourth short-circuit structure consists of one or more conductor sheets or conductor lines, and the distance of the fourth coupling gap is between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication band.

16. The integrated wideband antenna of claim 1, wherein, The first conductor plate, the second conductor plate, and the feed conductor structure can be formed on a single-layer or multi-layer dielectric substrate.

17. The integrated wideband antenna of claim 1, wherein, The second connection edge can be electrically connected to the first connection edge of another set of integrated broadband antennas, and the two are repeatedly connected in series to form an integrated broadband antenna array, which can be applied to a multiple-input multiple-output antenna system or a beamforming antenna system.

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