1029 results about "RF connector" patented technology

A built-in antenna apparatus and a portable terminal including the same are provided. The apparatus includes a substrate, an antenna carrier, a plate type antenna radiator operating in at least one resonance band, and at least one sub antenna radiator. The substrate has a feeding pad for electrically coupling with a Radio Frequency (RF) connector. The antenna carrier for establishing preset distance from the substrate. The plate type antenna radiator is disposed on the antenna carrier. The sub antenna radiator is electrically coupled with the plate type antenna radiator.

A dc-to-coax adapter is provided for establishing an electrical coupling between a power source and a coaxial cable device. The adapter may include a power connector portion and an RF connector portion. In an exemplary embodiment the power connector portion comprises a dc jack adapted to establish an electrical coupling with a standard dc barrel plug connector and the RF connector portion comprises a female F connector adapted for establishing electrical coupling with a male F connector. The contacts of the power connector portion may be integrated with the contacts of the RF connector portion the adapter housing may provide a continuous ground connection.

A two-part connector can be achieved for high performance situations using blind-mate insertion by using power activation. In one embodiment, the male and female portions of a standard RF connector can be securely mated so as to achieve high performance without the need for a screw type locking mechanism. Power activation is achieved, in one embodiment, by pneumatic actuation of a piston having fingers which engage an outer edge of a housing formed around the female portion of the connector so as to pull the female portion into a tight mating relationship with the male portion.

A radio-frequency connector consisting of a socket member and a plug member electrically connectable to the socket member is disclosed. The socket member or plug member has an impedance element mounted therein such that the impedance element is electrically connected to the metal casing and metal center pin of the socket member or plug member that carries the impedance element when the plug member is disconnected from the socket member, causing the impedance element to provide a terminal effect to insolate external electromagnetic noises; the impedance element is separated from the metal casing and metal center pin of the socket member or plug member that carries impedance element when the plug member is connected to the socket member.

The invention discloses a radio frequency connector. The radio frequency connector comprises a socket with an inner conductor and an outer conductor. The radio frequency connector is characterized in that the inside of the socket is provided with a commutator; the commutator is a casing of which two ends have raised cushion packaging structures; an elastic sleeve is arranged outside the casing, an elastic twist pin is clamped at an insulating seat in the elastic sleeve; the raised cushion packaging structures are in the elastic interference fit with an outer conductor; and the elastic twist pin is inserted in the inner conductor, thus realizing the coaxial floating connection of the radio frequency connector and the mounting panel. Compared with the prior art, the invention has the advantages of simple structure and low production cost; the radio frequency coaxial connector can float axially and radially, the effective contact of the panel and the radio frequency connector can be ensured; and the radio frequency connector is especially suitable for the use condition that a plurality of products are arranged on one panel, and the consistency of the electric property can be ensured.

The package structure for a high-speed semiconductor light emission assembly comprises: a dish-type case with RF connector, a semiconductor refrigerator to control the work temperature of emission chip, a KOVAR metal heat sink, a medium heat sink substrate, a light emission device, a thermistor, a backlight detector, the metal wire to connect dc connection electrode and case pin, a coplanar waveguide transmission lie on medium substrate, and optical coupling assembly. Wherein, it uses BTF standard package form for dc terminals outside the case.

A signal path configuration method and apparatus of a wireless device are provided for avoiding radiation performance degradation caused by holding a specific part of the wireless device. A wireless device of the present invention includes a Radio Frequency (RF) unit that includes a plurality of antennas, an RF connector for RF calibration, and a detection unit for detecting connection of an RF cable, a switch for switching a signal path to one of the plurality of antennas, and a control unit for distinguishing between communication modes based on a detection signal output by the detection unit and for generating a control signal for controlling the switch to connect the signal path to one of the antennas according to the communication mode.

The invention provides an antenna switch circuit and wireless terminal device. The device includes a radio-frequency input port, a detection port, an internal antenna and a radio-frequency connector. The device also includes a detection circuit, which is formed a DC detection circuit during forming a radio-frequency channel in the radio-frequency connector to connect the internal antenna, such that the detection port acquires a DC voltage change in the radio-frequency channel of the DC detection circuit; a switch circuit, which includes an input port connecting the radio-frequency input port, a control terminal connecting the detection port connection, and two input ports connecting the radio-frequency connector and the internal antenna respectively. The switch circuit according to the detection port acquires the DC voltage change to switch a connected relation of the input port and two output ports. The invention by a DC characteristics of the external antenna, though the detection circuit and the switch circuit is to automatically switch and connect between the internal antenna and the external antenna, to ensure an uninterrupted communication.

The invention discloses a testing method for the shielding effectiveness of a small-size shielding cavity. The testing method is characterized in that a shielding anechoic chamber and a shielding chamber are two cavities formed by separation through a metal wall plate; a wave absorbing material is arranged on the wall surface of the shielding anechoic chamber; the shielding anechoic chamber and the shielding chamber are independently grounded; a receiver is arranged in the shielding chamber; other devices are arranged in the shielding anechoic chamber; a bidirectional radio frequency connector is arranged on the wall surface of the metal wall plate; a near-field test antenna is arranged in the shielding anechoic chamber and is sequentially conducted with the bidirectional radio frequency connector and the receiver which are arranged on the wall surface of the metal wall plate through a coaxial cable; a transmitting antenna is sequentially conducted with a pre-amplifier and a signal source through a coaxial cable; the transmitting antenna, the pre-amplifier and the signal source are arranged in the shielding chamber; the center of the transmitting antenna corresponds to the center of the near-field test antenna; and the testing method is realized by three steps of measuring a direct-connection receiving value and a radio frequency leakage quantity and calculating the shielding effectiveness. The testing method is simple and accurate.

An ultra-broadband antenna system is disclosed. The antenna system is a single tubular antenna structure comprising an asymmetrical dipole fed with a biconical dipole. The biconical dipole covers the high frequency spectrum, while the asymmetrical dipole covers intermediate frequencies. The invention further relates to a combination of the two dipole structures such that together they act as a monopole to cover the low frequency spectrum. A first RF connector attaches to the asymmetrical dipole and the biconical dipole, and a second RF connector excites the combination of the two dipoles as one large monopole. A choke minimizes interference between the asymmetrical/biconical dipoles and the monopole. The resulting frequency span is greater than 500:1, providing operation over the range of 20 MHz to 10 GHz.

Spatially combining signals may include receiving a number of RF input signals at a number of RF input connectors. At least one of the RF input signals is a variable envelope signal. A variable envelope signal is converted into two or more outphased constant envelope signals. The two or more outphased constant envelope signals are amplified. The amplified outphased constant envelope signals are radiated. At a spatial combiner aperture, the radiated amplified outphased constant envelope signals are combined to create a combined signal. The combined signal is output onto an output RF connector.

The invention discloses an antenna structure of an electronic product with a rotational structure. The antenna structure comprises a mainboard and a rotational structure, wherein the mainboard is arranged in an electronic product shell; the rotational structure is coupled with the electronic product shell through a revolving shaft, and comprises a metal part which can be taken as an antenna radiator; the antenna radiator is connected with a radiofrequency connector arranged on the mainboard through a revolving shaft. The metal part in the rotational structure is taken as the antenna radiator, and the antenna radiator and the radiofrequency connector arranged on the mainboard of the electronic product are connected with a feed signal, thereby forming an antenna and producing resonance. The antenna radiator is arranged by fully utilizing an existing metal structure in the rotational structure of the electronic product without influencing the lightening and thinning development of the electronic product. Different types of antennae can be arranged under the condition that the rotational structure is a metallic or nonmetallic structure without being limited by the material of the rotational structure.

The invention provides a handheld dual-mode miniaturized user machine antenna. The antenna comprises a bottom plate (1), feed networks (2), a B3 frequency band circularly polarized antenna body (3), an L frequency band circularly polarized antenna body (4), an S frequency band circularly polarized antenna body (5) and feed probes (6). Ceramic substrates with different thicknesses and dielectric constants are adopted for the circularly polarized antenna bodies, a deformed square patch with a radial band line is printed on each substrate, and a coaxial superposition laminated structure is formed by the three circularly polarized antenna bodies from top to bottom according to the working frequency from high to low. The three frequency band antenna bodies are connected with respective feed networks through the feed probes, and the bottom plate and a feed network plate are fixed; three radio-frequency connectors are arranged below the feed network plate, connected with feed network radio-frequency outlets of the three frequency band circularly polarized antenna bodies respectively and led out through three holes below the bottom plate. The handheld dual-mode miniaturized user machine antenna can be compatible with the L frequency band and the S frequency band of the first Big Dipper generation and the B3 frequency band of the second Big Dipper generation, is smaller in size compared with an existing handheld antenna and can be used for military handheld navigation equipment.

The invention provides a 5G large-scale array antenna which comprises a dense radiation array, a reflecting plate, a PCB and a blind-inserting type radio-frequency connector. The PCB is printed by a calibration network and a feed network; and the dense radiation array is composed of a plurality of double-polarization oscillators fixed on the reflecting plate, and each double-polarization oscillator comprises a radiation unit and a feed piece; and decoupling devices are arranged among the radiation units; and an isolation resistor is designed in each stage power division port of the feed network and the multi-stage calibration network. The decoupling devices designed for the dense radiation array ensure the direction graphs of all the radio frequency channels are consistent. The multi-stage calibration network adopts a plurality of beneficial technologies to ensure that the amplitude-phases of all the radio frequency ports are consistent; and therefore, the 5-G large-scale array antenna disclosed by the invention can achieve a good service and broadcasting direction graphs through the beam forming technology, making the antenna very suitable to be applied to a 5G large-scale antenna system.

A coaxial connector system comprises a coaxial plug connector and socket connector. The coaxial connectors have a center conductor defining a center axis of the connector and an outer conductor coaxial to the center conductor. The plug connector's outer conductor has a cylindrical shape with slits forming a plurality of spring loaded contact elements, while the socket connector's outer conductor is a cylindrical shape forming a contact surface. Furthermore, the connectors have a mechanical contact surface at a right angle to their center axis and distant from the spring loaded contact elements and the contact surface. Cylindrically precision centering means are provided at the connectors, which fit into each other and precisely align the center axis of the connectors resulting in reduced passive intermodulation. This design allows for further reducing contact gaps between the outer and inner conductors to further improve return loss at high frequencies.

A probe for measuring radio frequency/electromagnetic interference (RF/EMI) is used in combination with a spectrum analyzer or oscilloscope (measuring equipment) to measure and/or test for EMI in electronic equipment. The RF/EMI probe has high dielectric transformer isolation between the input of the measuring equipment and the circuit under test so as to prevent damaging the measuring equipment if a high voltage or current is encountered in the circuit being tested. The RF/EMI probe comprises a measurement tip connected to a shielded sense line, the shielded sense line is electro-magnetically coupled to a toroid forming a RF transformer, a high impedance termination load is connected to the shielded sense line, a shielded coaxial cable having a center conductor connected to a secondary winding on the toroid transformer, the shielded coaxial cable being adapted for connection to an input of the measuring equipment. The shield of the coaxial cable is continuous between the input connector of the measuring equipment and a shielded enclosure surrounding the toroid transformer. The coaxial cable may terminate in a RF connector, e.g., BNC and the like, for quick connection to and disconnection from the measuring equipment.

The embodiment of the invention provides a radio-frequency connector comprising a compatible female end and a first male end or a second male end. The compatible female end is connected with the firstmale end or second male end. The one female end is compatible with two kinds of different male ends for connection. The radio-frequency connector is especially suitable for connection between a quick-plugging type panel and a feed cable as well as connection between a quick-plugging type feed cable and a feed cable to realize an integrated operation of mounting and water prevention.