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公开(公告)号：US11843172B2
公开(公告)日：2023-12-12
申请号：US17689952
申请日：2022-03-08
Applicant: QuantumZ Inc.
Inventor： Chih-Yang Lou , Meng-Hua Tsai , Wei-Ting Lee , Sin-Siang Wang
CPC classification number: H01Q19/005 , H01Q9/0414 , H01Q13/10
Abstract: A patch antenna includes a dielectric substrate formed by a high dielectric coefficient material covered with a soft material. The dielectric substrate has a first surface, an opposite second surface, and surrounding side surfaces there between. The patch antenna further includes a radiating metal arm formed on at least the first surface with a thin metal layer in a specific shape, a grounding metal plate disposed on the second surface, and a parasitic metal arm extending from the grounding metal plate towards the first surface via at least one of the side surfaces. The parasitic metal arm is approximate but not connected to the radiating metal arm. The radiation metal arm further includes an enclosed slot, together with the parasitic metal arm, improve the working bandwidth and high directivity of the antenna.
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公开(公告)号：US11916313B2
公开(公告)日：2024-02-27
申请号：US17707928
申请日：2022-03-29
Applicant: QuantumZ Inc.
Inventor： Kun-Yen Tu , Meng-Hua Tsai , Wei-Ting Lee , Sin-Siang Wang
CPC classification number: H01Q9/0414 , H01Q1/42 , H01Q9/0421
Abstract: An appressed antenna includes an antenna housing and a metal shell. The antenna housing comprising a housing and a planar antenna, where the planar antenna is bent with one part folded onto the inner surface of the housing and other part pressed onto the outer surface of the housing. The antenna housing is sleeve fitted to the metal shell with a gap between for the planar antenna to radiate. In this all-metal environment, the position of the antenna is close to the gap opening will increase radiation efficiency. By having at least a branch at the tail end of the appressed antenna, the appressed antenna can have a good return loss and antenna gain.
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公开(公告)号：US12270847B2
公开(公告)日：2025-04-08
申请号：US18315486
申请日：2023-05-10
Applicant: QuantumZ Inc.
Inventor： Meng-Hua Tsai , Wei-Ting Lee , Chun-Yen Wang , Wei-Cheng Lin
Abstract: An antenna test system includes a box body, a supporting device, at least one probe device, a signal measuring device, and a moving device. The box body has at least an operation side configured to be opened to allow access to devices inside the box body. The supporting device is disposed in the box body and the antenna circuit to be tested is arranged thereon. The probe device is disposed in the box body and configured to apply an antenna testing signal to the antenna circuit to emit an antenna working signal. The signal measuring device is disposed in the box body to receive the antenna working signal emitted from the antenna circuit. The moving device is disposed in the box body and configured to carry the signal measuring device to maneuver in three directions of X-axis, Y-axis, and Z-axis to receive the antenna working signal in different positions.
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公开(公告)号：US11843176B2
公开(公告)日：2023-12-12
申请号：US17680312
申请日：2022-02-25
Applicant: QuantumZ Inc.
Inventor： Wei-Huang Chen , Meng-Hua Tsai , Wei-Ting Lee , Sin-Siang Wang
CPC classification number: H01Q21/065 , H01Q9/045 , H01Q21/064
Abstract: An array antenna of a radar includes a liquid crystal polymer (LCP) substrate with antenna transceiver circuits embedded. A plurality of patch array antennas are disposed on the LCP substrate and connected to the antenna transceiver circuit. Each patch array antenna includes a plurality of patch antennas connected in series, and the foremost patch antenna has a concave slot on the radiating surface by each side of respective feed line. By use of a LCP substrate can ensure stable material characteristics in different environments. Compared with a single patch antenna, the gain may be improved by 6 dB by connecting four patch antennas in series. A concave slot is formed on a radiating surface of a patch antenna to optimize a feed impedance, thereby to improve a working bandwidth of the antenna to alleviate an excessively narrow bandwidth of a patch antenna.
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Patent Agency Ranking
公开(公告)号：US12294153B2
公开(公告)日：2025-05-06
申请号：US17972558
申请日：2022-10-24
Applicant: QuantumZ Inc.
Inventor： Chih-Yang Lou , Meng-Hua Tsai , Wei-Ting Lee , Sin-Siang Wang
Abstract: An array antenna includes a flexible substrate formed by stacked liquid crystal polymer (LCP) layers and has at least one feed point. At least one serial antenna is arranged on the flexible substrate, and a microstrip is extended from the feed point to connect a plurality of radiating elements in series to form the serial antenna. The tail end one of the radiating elements of the serial antenna is connected to one end of a ground microstrip, and another end of the ground microstrip is short-circuited to the ground. The length of the ground microstrip is approximately one fourth of the wavelength of the center frequency of the array antenna. Feeding sections where microstrips feeding to the radiating elements are in a horn and/or groove shape. Desired frequency and bandwidth may be obtained by adjusting lengths and widths of feeding sections respectively.
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公开(公告)号：US12191900B2
公开(公告)日：2025-01-07
申请号：US17872001
申请日：2022-07-25
Applicant: QuantumZ Inc.
Inventor： Kun-Yen Tu , Meng-Hua Tsai , Wei-Ting Lee , Sin-Siang Wang , Gang-Lin Zhang
Abstract: A millimeter wave radio frequency (RF) structure uses a substrate including a liquid-crystal polymer material, at least one dual-polarized antenna, a RF transceiver module, and a switching module electrically connected to the at least one dual-polarized antenna and the RF transceiver module, where the switching module includes a first switching element and a second switching element electrically connected to the at least one dual-polarized antenna, and a third switching element electrically connected to the first switching element and the second switching element, to enhance characteristics of a liquid-crystal polymer (LCP) substrate for millimeter waves, and implement high-frequency, high-speed transmission while ensuring high reliability.
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公开(公告)号：US11967762B2
公开(公告)日：2024-04-23
申请号：US17818721
申请日：2022-08-10
Applicant: QuantumZ Inc.
Inventor： Gang-Lin Zhang , Meng-Hua Tsai , Weiting Lee , Sin-Siang Wang
CPC classification number: H01Q15/008 , H01Q1/38 , H01Q15/14 , H01Q21/062 , H01Q21/08 , H01Q21/20
Abstract: An antenna structure includes a substrate, a plurality of reflective plates, a grounding plate, a radiating member, a signal feeding via and a plurality of conductive vias. The substrate has opposite first and second surfaces and comprises liquid crystal polymer. The reflective plates are arrayed on the first surface of the substrate. The grounding plate is disposed on the second surface of the substrate and overlapped with the reflective plates in a normal direction of the substrate. The grounding plate further includes an opening. The radiating member is disposed on the first surface of the substrate and physically separated from the reflective plates. The signal feeding via is coupled with the radiating member and penetrates through the substrate to be exposed in the opening of the grounding plate. The conductive vias penetrate through the substrate and respectively connect the reflective plates and the grounding plate.
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公开(公告)号：US11862869B2
公开(公告)日：2024-01-02
申请号：US17805866
申请日：2022-06-08
Applicant: QuantumZ Inc.
Inventor： Gang-Lin Zhang , Meng-Hua Tsai , Weiting Lee , Sin-Siang Wang
Abstract: An antenna structure includes a substrate, a plurality of reflective plates, a grounding plate, a radiating member and a plurality of conductive vias. The substrate contains liquid crystal polymer and has opposite first and second surfaces. The reflective plates are arranged in an array on the first surface of the substrate. The grounding plate is arranged on the second surface of the substrate and overlaps with the reflective plates in a normal direction of the substrate. The radiating member is on the second surface of the substrate and does not overlap with the reflective plates in the normal direction of the substrate. The radiating member has an open slot which is defined by a first radiating branch and a second radiating branch that generate at least two different operating frequency bands. The conductive vias respectively penetrate the substrate and connect with the reflective plates and the grounding plate.
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公开(公告)号：US11705636B2
公开(公告)日：2023-07-18
申请号：US17586695
申请日：2022-01-27
Applicant: QuantumZ Inc.
Inventor： Kun-Yen Tu , Meng-Hua Tsai , Wei-Ting Lee , Sin-Siang Wang
CPC classification number: H01Q9/0414 , H01Q9/045 , H01Q1/243 , H01Q21/065
Abstract: A composite antenna and array antenna using the same. The antenna has a three-layer structure including a patch antenna, a slot antenna and a transmission line. A first layer includes a patch antenna resonating at half a wavelength, a second layer includes a slot antenna resonating at half the wavelength, and a third layer includes a transmission line and a feed point. The three layers are coupled and the entire composite antenna unit satisfies a resonance condition. A signal is fed through the transmission line and coupled to the slot antenna, and the signal from the slot antenna is further coupled to the patch antenna. This composition antenna has a desirable antenna gain, and an increased antenna bandwidth compared to a single patch antenna or slot antenna.
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