Abstract: Embodiments provide a filtering device, to effectively simplify assembly and tuning processes. The filtering device includes: a housing, including an inner cavity; a resonant conductor, having a resonance function, and disposed inside the inner cavity; and a pressing element, having one end disposed on the housing and another end suspended, and facing a position of an open-circuit end of the resonant conductor. A distance between the pressing element and the resonant conductor is changeable when the pressing element is pressed or drawn to adjust a resonant frequency. The filtering device provided in various embodiments is applicable to a plurality of communications devices for selecting a signal frequency.

Abstract: This application discloses feeding devices, antennas, and electronic devices. In one implementation, a feeding device comprises a phase shifter, a combiner, and a jumper component, wherein the phase shifter has a first cavity, the combiner has a second cavity adjacent to and connected to the first cavity, and the phase shifter is connected to the combiner through the jumper component.

Abstract: Embodiments provide a filtering device, to effectively simplify assembly and tuning processes. The filtering device includes: a housing, including an inner cavity; a resonant conductor, having a resonance function, and disposed inside the inner cavity; and a pressing element, having one end disposed on the housing and another end suspended, and facing a position of an open-circuit end of the resonant conductor. A distance between the pressing element and the resonant conductor is changeable when the pressing element is pressed or drawn to adjust a resonant frequency. The filtering device provided in various embodiments is applicable to a plurality of communications devices for selecting a signal frequency.

Abstract: Embodiments provide a filtering device, to effectively simplify assembly and tuning processes. The filtering device includes: a housing, including an inner cavity; a resonant conductor, having a resonance function, and disposed inside the inner cavity; and a pressing element, having one end disposed on the housing and another end suspended, and facing a position of an open-circuit end of the resonant conductor. A distance between the pressing element and the resonant conductor is changeable when the pressing element is pressed or drawn to adjust a resonant frequency. The filtering device provided in various embodiments is applicable to a plurality of communications devices for selecting a signal frequency.

Abstract: This application discloses a feeding device, an antenna, and an electronic device, and belongs to the communications field. The feeding device includes a phase shifter, a combiner, and a jumper component. The phase shifter has a first cavity, the combiner has a second cavity, the first cavity is adjacently connected to the second cavity, and the phase shifter is connected to the combiner by using the jumper component. In this application, costs of the feeding device can be reduced, and a signal loss of the feeding device can be reduced.

Abstract: Embodiments of this disclosure provide a combiner, which includes an external conductor and an internal conductor, the external conductor and the internal conductor form at least two band-stop filters, and the at least two band-stop filters form at least two passbands; the at least two passbands include a first target combined passband and a second target combined passband, and a frequency of the first target combined passband is lower than a frequency of the second target combined passband; and a signal channel is included between a signal input end and a signal output end of a band-stop filter to which the second target combined passband belongs, the signal channel is formed by the internal conductor, and the internal conductor forming the signal channel includes a capacitor. Implementing the present invention can shorten a length of a main transmission line of the signal channel, and reduce a volume of the combiner.

Abstract: Embodiments provide a filtering device, to effectively simplify assembly and tuning processes. The filtering device includes: a housing, including an inner cavity; a resonant conductor, having a resonance function, and disposed inside the inner cavity; and a pressing element, having one end disposed on the housing and another end suspended, and facing a position of an open-circuit end of the resonant conductor. A distance between the pressing element and the resonant conductor is changeable when the pressing element is pressed or drawn to adjust a resonant frequency. The filtering device provided in various embodiments is applicable to a plurality of communications devices for selecting a signal frequency.

Abstract: Embodiments of this disclosure provide a combiner, which includes an external conductor and an internal conductor, the external conductor and the internal conductor form at least two band-stop filters, and the at least two band-stop filters form at least two passbands; the at least two passbands include a first target combined passband and a second target combined passband, and a frequency of the first target combined passband is lower than a frequency of the second target combined passband; and a signal channel is included between a signal input end and a signal output end of a band-stop filter to which the second target combined passband belongs, the signal channel is formed by the internal conductor, and the internal conductor forming the signal channel includes a capacitor. Implementing the present invention can shorten a length of a main transmission line of the signal channel, and reduce a volume of the combiner.

Abstract: Embodiments of the present invention disclose a filter, including: a conductive box body, and an insulating substrate, a first conductor, and a second conductor that are arranged inside the conductive box body. The insulating substrate includes a first surface and a second surface. The first conductor is arranged on the first surface of the insulating substrate. A position on the second surface corresponding to the first conductor contacts with the conductive box body. The second conductor is arranged on the first surface or the second surface of the insulating substrate. The second conductor and the conductive box body form a coaxial resonant cavity together. Further, an end of the second conductor is coupled with the first conductor, and the other end of the second conductor is coupled with the conductive box body. The filter has advantages of a microstrip filter of simple manufacturing process and small volume.

Abstract: Embodiments of the present invention disclose a filter, including: a conductive box body, and an insulating substrate, a first conductor, and a second conductor that are arranged inside the conductive box body. The insulating substrate includes a first surface and a second surface. The first conductor is arranged on the first surface of the insulating substrate. A position on the second surface corresponding to the first conductor contacts with the conductive box body. The second conductor is arranged on the first surface or the second surface of the insulating substrate. The second conductor and the conductive box body form a coaxial resonant cavity together. Further, an end of the second conductor is coupled with the first conductor, and the other end of the second conductor is coupled with the conductive box body. The filter has advantages of a microstrip filter of simple manufacturing process and small volume.