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公开(公告)号：EP4037099A1
公开(公告)日：2022-08-03
申请号：EP20869793.8
申请日：2020-09-18
发明人： UEJIMA, Hiroyuki
摘要： The present invention provides an antenna device having a simple configuration for multiband operation. The antenna device is provided with: a first antenna element which is provided in a first layer of a multi-layer substrate and has a first frequency band; a second antenna element which is provided in a second layer of the multi-layer substrate different from the first layer, and has a second frequency band lower than the first frequency band; a ground substrate; a first feeding line path extending from the first antenna element toward the ground substrate; a second feeding line path extending from the second antenna element toward the ground substrate; and a filter connecting the second antenna element and the ground substrate, the filter passing a signal of the first frequency band and blocking a signal of the second frequency band.
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公开(公告)号：EP3435738B1
公开(公告)日：2020-02-12
申请号：EP17770007.7
申请日：2017-03-13
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公开(公告)号：EP3503681A1
公开(公告)日：2019-06-26
申请号：EP17843288.6
申请日：2017-07-24
摘要： A high-frequency heating device (1a) includes a generation unit (8), a surface wave exciter (10), a first connecting unit (12), and a reuse unit (14). The generation unit (8) generates microwaves. The surface wave exciter (10) includes a periodic structure and heats a heating subject (6) by propagating the microwaves in a surface wave mode. The first connecting unit (12) is disposed at one end portion (15) of the surface wave exciter (10). The microwaves generated by the generation unit (8) are supplied to the surface wave exciter (10) through the first connecting unit (12). The reuse unit (14) reuses, for heating the heating subject (6), the microwaves that have reached another end portion (17) of the surface wave exciter (10) located in the propagation direction of the microwaves from one end portion (15) of the surface wave exciter (10). According to the present aspect, microwaves that have not been absorbed by the heating subject can be reused for heating the heating subject.
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公开(公告)号：EP3503681B1
公开(公告)日：2020-05-13
申请号：EP17843288.6
申请日：2017-07-24
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公开(公告)号：EP3481149A1
公开(公告)日：2019-05-08
申请号：EP17819906.3
申请日：2017-06-16
摘要： High-frequency power generation unit (120) configured to generate high-frequency power, surface wave excitation body (103) configured to propagate the high-frequency power with a surface wave to heat heating-target object (102), high-frequency power supply unit (110) configured to supply the high-frequency power to surface wave excitation body (103), and mounting stand (101) on which heating-target object (102) is mounted. In accordance with a desired degree of surface concentration of the high-frequency power around surface wave excitation body (103), high-frequency power generation unit (120) sets a magnitude relationship between a frequency of the high-frequency power to be supplied to surface wave excitation body (103) and an exciting frequency of surface wave excitation body (103) to heat heating-target object (102). High-frequency heating device (100) capable of changing a heating state in a thickness direction of heating-target object (102) is therefore provided.
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公开(公告)号：EP4039544A1
公开(公告)日：2022-08-10
申请号：EP20872048.2
申请日：2020-09-28
发明人： UEJIMA, Hiroyuki
摘要： This antenna device comprises an antenna element disposed in a recess 2 on the exterior of a moving body, and a non-feeding element of which the center is disposed at a position higher than the horizontal plane in which the center of the antenna element is positioned in the recess. In the antenna device, furthermore, the moving body is a vehicle, and the recess may be provided in a roof 1 of the vehicle.
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公开(公告)号：EP3435738A1
公开(公告)日：2019-01-30
申请号：EP17770007.7
申请日：2017-03-13
摘要： A microwave treatment apparatus (101) comprises: a heating chamber (11); an oscillation source (1) that generates a microwave; a base plate disposed in the heating chamber (11) for placing thereon a heated object (7); and a waveguide (6) that guides the microwave into the heating chamber. The microwave treatment apparatus (101) further comprises: a periodic structure (5) disposed in the waveguide for causing the microwave to propagate in a surface wave mode; a detection antenna (9) near the periodic structure (5); a detector that detects an electromagnetic wave received by the detection antenna (9); and a controller (10) that controls the oscillation source (1). The controller (10) recognizes a power distribution of the electromagnetic field near the periodic structure (5) based on the detected electromagnetic wave and causes the oscillation source (1) to set the oscillation frequency to either a first oscillation frequency or a second oscillation frequency according to the power distribution of the electromagnetic field. In this aspect, a desirable power distribution of the electromagnetic field near the periodic structure can be maintained by correcting a characteristic change of the periodic structure.
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