Patents by Inventor Yong Mei Pan
Yong Mei Pan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11942698Abstract: A dual-band HP omnidirectional antenna includes an electrically small (ES) first omnidirectional loop antenna for a first band, and a second omnidirectional loop antenna for a second band. The first omnidirectional loop antenna and the second omnidirectional loop antenna are capable of operating independently in the first band and the second band. A loading effect of the second omnidirectional loop antenna adapted to suppress a higher-order mode of the first omnidirectional loop antenna.Type: GrantFiled: March 3, 2022Date of Patent: March 26, 2024Assignee: City University of Hong KongInventors: Kwok Wa Leung, Peng Fei Hu, Yong Mei Pan, Shao Yong Zheng
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Publication number: 20220302587Abstract: A dual-band HP omnidirectional antenna includes an electrically small (ES) first omnidirectional loop antenna for a first band, and a second omnidirectional loop antenna for a second band. The first omnidirectional loop antenna and the second omnidirectional loop antenna are capable of operating independently in the first band and the second band. A loading effect of the second omnidirectional loop antenna adapted to suppress a higher-order mode of the first omnidirectional loop antenna.Type: ApplicationFiled: March 3, 2022Publication date: September 22, 2022Inventors: Kwok Wa Leung, Peng Fei HU, Yong Mei Pan, Shao Yong Zheng
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Patent number: 10965032Abstract: A dielectric resonator antenna includes a dielectric resonator element, a ground plane, and a conductive feeding arrangement. The ground plane is connected with the dielectric resonator element, and is operable to generate a first electromagnetic radiation. The conductive feeding arrangement is operable to generate a second electromagnetic radiation. During operation, simultaneous generation of the first electromagnetic radiation and the second electromagnetic radiation provides a unilateral electromagnetic radiation.Type: GrantFiled: January 8, 2018Date of Patent: March 30, 2021Assignee: City University of Hong KongInventors: Kwok Wa Leung, Yong Mei Pan, Lei Guo
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Patent number: 10910721Abstract: A simple and compact filtering dielectric resonator antenna comprising: a ground plane, a dielectric substrate defined on the ground plane, a dielectric resonator defined on the dielectric substrate, and a hybrid feeding line, the hybrid feeding line comprises: a microstrip line and a metallic conformal strip, and the microstrip line comprises: a microstrip main branch, a first microstrip stub and a second microstrip stub. In the present invention, a hybrid feeding line is firstly employed to a dielectric resonator antenna. It has been shown that this hybrid feeding line can not only increase the impedance bandwidth of the passband but also can introduce two radiation nulls right near the band edges. Both good filtering and radiating performances are therefore obtained without any extra filtering circuit, giving a very compact structure.Type: GrantFiled: June 27, 2018Date of Patent: February 2, 2021Assignee: South China University of TechnologyInventors: Yong-Mei Pan, Pengfei Hu, Kwok Wa Leung, Xiuyin Zhang
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Patent number: 10587047Abstract: A filtering antenna element and a dual-band filtering antenna array using filtering antenna elements for mutual coupling suppression have been disclosed. The filtering antenna element comprises a feeding element, a sub-substrate, a sup-substrate and an air gap between the sub-substrate and the sup-substrate. A stacked patch is fabricated on a top surface of the sub-substrate, a driven patch and a ground plane are fabricated on a top surface and a bottom surface of the sub-substrate. An asymmetric E-slot is arranged on the driven patch and a shorting pin is inserted into the sub-substrate for generating radiation nulls in stopbands. The dual-band filtering antenna array is compact and needs no feeding network with an isolation of 35 dB, and is suitable for potential base station applications.Type: GrantFiled: March 9, 2017Date of Patent: March 10, 2020Assignee: South China University of TechnologyInventors: Xiu Yin Zhang, Yao Zhang, Yong-Mei Pan
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Publication number: 20190341695Abstract: A simple and compact filtering dielectric resonator antenna comprising: a ground plane, a dielectric substrate defined on the ground plane, a dielectric resonator defined on the dielectric substrate, and a hybrid feeding line, the hybrid feeding line comprises: a microstrip line and a metallic conformal strip, and the microstrip line comprises: a microstrip main branch, a first microstrip stub and a second microstrip stub. In the present invention, a hybrid feeding line is firstly employed to a dielectric resonator antenna. It has been shown that this hybrid feeding line can not only increase the impedance bandwidth of the passband but also can introduce two radiation nulls right near the band edges. Both good filtering and radiating performances are therefore obtained without any extra filtering circuit, giving a very compact structure.Type: ApplicationFiled: June 27, 2018Publication date: November 7, 2019Inventors: Yong-Mei Pan, Pengfei Hu, Kwok Wa Leung, Xiuyin Zhang
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Publication number: 20190214732Abstract: A dielectric resonator antenna includes a dielectric resonator element, a ground plane, and a conductive feeding arrangement. The ground plane is connected with the dielectric resonator element, and is operable to generate a first electromagnetic radiation. The conductive feeding arrangement is operable to generate a second electromagnetic radiation. During operation, simultaneous generation of the first electromagnetic radiation and the second electromagnetic radiation provides a unilateral electromagnetic radiation.Type: ApplicationFiled: January 8, 2018Publication date: July 11, 2019Inventors: Kwok Wa LEUNG, Yong Mei PAN, Lei GUO
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Patent number: 10347990Abstract: A low-profile dual-band filtering patch antenna and its application to LTE MIMO system are disclosed. By using two embedded U-shaped radiating patches and a multi-stub microstrip feed-line, two operating bands and four radiation nulls can been generated and individually controlled, the design is thus very simple and flexible. Based on the proposed low-profile dual-band filtering patch antenna, a MIMO antenna with a very low profile, low mutual coupling and low ECCs has been presented.Type: GrantFiled: May 23, 2017Date of Patent: July 9, 2019Assignee: South China University of TechnologyInventors: Xiu Yin Zhang, Yao Zhang, Yong-Mei Pan, Wen Duan
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Publication number: 20190131710Abstract: A wideband circularly polarized antenna, comprising a ground plane, a radiating element and a plurality of metallic plates; the radiating element is defined above the ground plane, the metallic plates are sequentially and vertically defined around the ground plane, and displacements from the metallic plates to the center of the ground plane are the same. The wideband circularly polarized antenna provided by the present invention has a broad bandwidth and a compact configuration.Type: ApplicationFiled: January 31, 2018Publication date: May 2, 2019Inventors: Yong-Mei Pan, Wanjun Yang, Shaoyong Zheng, Pengfei Hu
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Publication number: 20180183148Abstract: A compact quasi-isotropic shorted patch antenna and method of fabricating the same are disclosed. The patch antenna uses a small ground plane which has same dimensions with the radiating patch, therefore the radiation caused by the currents on the radiating patch is cancelled out by that comes from the opposite currents on the ground plane. Quasi-TEM mode is excited in the radiating patch cavity, generating surface magnetic currents on the open-ended slot and electric currents on the shorted side-wall. The corresponding currents are found not only perpendicular but also quadrature with each other, and therefore the patch antenna can provide a quasi-isotropic radiation pattern without involving complex feeding circuit.Type: ApplicationFiled: May 17, 2017Publication date: June 28, 2018Inventors: Yong-Mei Pan, Shaoyong Zheng
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Publication number: 20180151955Abstract: A low-profile dual-band filtering patch antenna and its application to LTE MIMO system are disclosed. By using two embedded U-shaped radiating patches and a multi-stub microstrip feed-line, two operating bands and four radiation nulls can been generated and individually controlled, the design is thus very simple and flexible. Based on the proposed low-profile dual-band filtering patch antenna, a MIMO antenna with a very low profile, low mutual coupling and low ECCs has been presented.Type: ApplicationFiled: May 23, 2017Publication date: May 31, 2018Inventors: Xiu Yin Zhang, Yao Zhang, Yong-Mei Pan, Wen Duan
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Patent number: 9941596Abstract: A dual-polarized filtering antenna comprising a driven patch, a parasitic stacked patch and a feeding network is disclosed. Two orthogonal H-shaped feeding lines are coupled to the driven patch for realizing dual polarization. The H-shaped feeding line provides a sharp roll-off rate at the lower band-edge, whereas the stacked patch offers a radiation null at the upper stopband. As a result, a quasi-elliptic bandpass response can be achieved for both polarizations.Type: GrantFiled: June 3, 2016Date of Patent: April 10, 2018Assignee: South China University of TechnologyInventors: Xiu Yin Zhang, Wen Duan, Yong-Mei Pan
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Publication number: 20180034156Abstract: A filtering antenna element and a dual-band filtering antenna array using filtering antenna elements for mutual coupling suppression have been disclosed. The filtering antenna element comprises a feeding element, a sub-substrate, a sup-substrate and an air gap between the sub-substrate and the sup-substrate. A stacked patch is fabricated on a top surface of the sub-substrate, a driven patch and a ground plane are fabricated on a top surface and a bottom surface of the sub-substrate. An asymmetric E-slot is arranged on the driven patch and a shorting pin is inserted into the sub-substrate for generating radiation nulls in stopbands. The dual-band filtering antenna array is compact and needs no feeding network with an isolation of 35 dB, and is suitable for potential base station applications.Type: ApplicationFiled: March 9, 2017Publication date: February 1, 2018Inventors: Xiu Yin Zhang, Yao Zhang, Yong-Mei Pan
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Patent number: 9793611Abstract: An antenna includes a dielectric resonator coupled to a ground plane provided on a substrate having a slot structure on the ground plane; and a monopole substantially surrounded by the dielectric resonator; wherein, when the monopole, the dielectric resonator and the slot structure are excited with an electrical signal, the combination of the monopole, the dielectric resonator and the slot structure is arranged to radiate an electromagnetic signal associated with the electrical signal in a substantially unidirectional manner.Type: GrantFiled: August 3, 2015Date of Patent: October 17, 2017Assignee: City University of Hong KongInventors: Kwok Wa Leung, Lei Guo, Yong Mei Pan
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Publication number: 20170294717Abstract: A dual-polarized filtering antenna comprising a driven patch, a parasitic stacked patch and a feeding network is disclosed. Two orthogonal H-shaped feeding lines are coupled to the driven patch for realizing dual polarization. The H-shaped feeding line provides a sharp roll-off rate at the lower band-edge, whereas the stacked patch offers a radiation null at the upper stopband. As a result, a quasi-elliptic bandpass response can be achieved for both polarizations.Type: ApplicationFiled: June 3, 2016Publication date: October 12, 2017Inventors: Xiu Yin Zhang, Wen Duan, Yong-Mei Pan
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Publication number: 20170040700Abstract: An antenna includes a dielectric resonator coupled to a ground plane provided on a substrate having a slot structure on the ground plane; and a monopole substantially surrounded by the dielectric resonator; wherein, when the monopole, the dielectric resonator and the slot structure are excited with an electrical signal, the combination of the monopole, the dielectric resonator and the slot structure is arranged to radiate an electromagnetic signal associated with the electrical signal in a substantially unidirectional manner.Type: ApplicationFiled: August 3, 2015Publication date: February 9, 2017Inventors: Kwok Wa Leung, Lei Guo, Yong Mei Pan
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Patent number: 8803749Abstract: An elliptically polarized (EP) dielectric block antenna comprises a linearly polarized (LP) dielectric block antenna and a wave polarizer integrated with the LP dielectric block antenna. The wave polarizer converts the LP wave of the LP dielectric block antenna into an EP wave or a circularly polarized (CP) wave. The wave polarizer is directly integrated with the LP dielectric block antenna by fabricating inclined slots on faces of the dielectric block at an oblique angle to the LP wave direction of polarization. This provides a very compact EP or CP antenna with a broadside or omnidirectional radiation pattern. The EP or CP antenna is excited by an inner conductor of a SubMiniature version A (SMA) connector that can be directly connected to a coaxial line thereby providing a simple feed network for the antenna.Type: GrantFiled: March 25, 2011Date of Patent: August 12, 2014Inventors: Kwok Wa Leung, Yong Mei Pan, Kai Lu
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Publication number: 20120242553Abstract: An elliptically polarized (EP) dielectric block antenna comprises a linearly polarized (LP) dielectric block antenna and a wave polarizer integrated with the LP dielectric block antenna. The wave polarizer converts the LP wave of the LP dielectric block antenna into an EP wave or a circularly polarized (CP) wave. The wave polarizer is directly integrated with the LP dielectric block antenna by fabricating inclined slots on faces of the dielectric block at an oblique angle to the LP wave direction of polarization. This provides a very compact EP or CP antenna with a broadside or omnidirectional radiation pattern. The EP or CP antenna is excited by an inner conductor of a SubMiniature version A (SMA) connector that can be directly connected to a coaxial line thereby providing a simple feed network for the antenna.Type: ApplicationFiled: March 25, 2011Publication date: September 27, 2012Inventors: Kwok Wa Leung, Yong Mei Pan, Kai Lu