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16 results about "Whip antenna" patented technology
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A whip antenna is an antenna consisting of a straight flexible wire or rod. The bottom end of the whip is connected to the radio receiver or transmitter. The antenna is designed to be flexible so that it does not break easily, and the name is derived from the whip-like motion that it exhibits when disturbed. Whip antennas for portable radios are often made of a series of interlocking telescoping metal tubes, so they can be retracted when not in use. Longer ones, made for mounting on vehicles and structures, are made of a flexible fiberglass rod around a wire core and can be up to 35 ft (10 m) long. The length of the whip antenna is determined by the wavelength of the radio waves it is used with. The most common type is the quarter-wave whip, which is approximately one-quarter of a wavelength long. Whips are the most common type of monopole antenna, and are used in the higher frequency HF, VHF and UHF radio bands. They are widely used as the antennas for hand-held radios, cordless phones, walkie-talkies, FM radios, boom boxes, and Wi-Fi enabled devices, and are attached to vehicles as the antennas for car radios and two-way radios for wheeled vehicles and for aircraft. Larger versions mounted on roofs and radio masts are used as base station antennas for police, fire, ambulance, taxi, and other vehicle dispatchers.
Whip antenna control platform
ActiveCN118554150BAntenna supports/mountingsAntenna adaptation in movable bodiesWhip antennaControl theory
A whip antenna manipulation platform, the mounting base includes an upper plate, a lower plate, and a fixed base, a turntable and a push rod are arranged between the upper plate and the lower plate, the fixed base includes an inner base and an outer base arranged in an integral manner, the inner base is fixed between the upper plate and the lower plate; the outer base is located on the outside of the upper plate and the lower plate, an antenna is arranged above the upper plate, when the folding arm is in the retracted state, the whip antenna is arranged downward, and the antenna is placed horizontally; when the folding arm is in the unfolded state, the whip antenna is arranged upward, and the antenna is arranged upward.
Owner:HENGYANG TELLHOW COMM MOTOR CO LTD
Vehicle-mounted antenna servo mechanism system and communication vehicle
PendingCN122267499AAntenna supports/mountingsAntenna adaptation in movable bodiesRemote controlIn vehicle
A kind of vehicle antenna servo mechanism system, including servo control machine case and the turntable mechanism, whip antenna down mechanism and lifting rod controlled by servo control machine case;The turntable mechanism includes antenna servo platform base and two-dimensional servo turntable;Three two-dimensional servo turntables are provided on the antenna servo platform base, and three two-dimensional servo turntables are respectively installed on antenna servo platform base by flat plate antenna azimuth turntable;Each two-dimensional servo turntable is connected with flat plate antenna;The output end of the whip antenna down mechanism is connected with whip antenna;The servo system controls the motor of two-dimensional servo turntable and realizes the azimuth and pitch movement of flat plate antenna by forward and reverse rotation, and realizes the down movement of whip antenna by controlling the motor of whip antenna down mechanism and realizing the down movement of whip antenna.The system has CAN remote control function by time sequence control, and can realize integrated multiple types of antenna or multiple antenna to be deployed or withdrawn according to different azimuth, pitch angle needs by one key.
Owner:LIUZHOU CHANGHONG DIGITAL CONTROL MACHINE TOOL
Unidirectional damping whip antenna fixing device
The invention relates to the field of ultra-short wave communication, in particular to a one-way damping whip antenna fixing device. The fixing device is provided with a movable buckle which can rotate along with the whip antenna after the whip antenna slides into the U-shaped groove; damping is provided through the damping block rotating in the silicone oil; the torsional spring wound on the damping rotating shaft is matched with the damping block, so that damping is provided only during one-way rotation; one-way damping is transmitted to the movable buckle through the gear set, the whip antenna is damped when moving upwards, and otherwise the whip antenna is not damped. The continuous upward acting force in the erecting process can enable the whip-shaped antenna to normally move upwards; in the bumping process, the upward displacement of the whip-shaped antenna can be reduced, the whip-shaped antenna can rapidly fall and reset, the whip-shaped antenna is effectively prevented from bouncing, and the service life of the whip-shaped antenna is prolonged. One-way damping is applied to the whip-shaped antenna through a mechanical structure, the structure is reliable, installation is easy, and bounce of the whip-shaped antenna can be effectively reduced under the condition that erecting is guaranteed.
Owner:SHANGHAI SPACEFLIGHT ELECTRONICS & COMM EQUIP RES INST
Wireless communication device, control circuit and related system for scene under mine
The invention relates to the technical field of under-mine robot control, in particular to a wireless communication device for under-mine scenes, a control circuit and a related system. Wherein the wireless communication device is used for carrying out signal relay between the underground robot and the control terminal. The wireless communication device comprises a repeater packaged in a spherical antenna shell, and the spherical antenna shell is provided with N whip-shaped antennas in the radial direction of the spherical antenna shell. The N whip-shaped antennas are uniformly distributed on the spherical antenna housing, and the whip-shaped antennas are of a flexible springback structure. According to the whip antenna, the communication base station can ensure normal signal receiving no matter where the communication base station is located, and internal information transmission is optimized, so that the optimal communication effect is achieved.
Owner:SHANDONG GUOXING SMARTECH CO LTD +1
Multi-band multi-port outdoor whip antenna with coupler
The utility model relates to a multi-band multi-port outdoor whip antenna with a coupler, which comprises a connector, a chassis and an antenna shell, and the antenna shell comprises a shell, a sleeve and a top cover which are fixed together. The antenna assembly comprises a first mounting plate, a coupler, a plurality of first 2G oscillator arrays, a first 2G oscillator array parasitic piece, a plurality of second 2G oscillator arrays, a second 2G oscillator array parasitic piece, a third 2G oscillator array parasitic piece, a second mounting plate, a 3G feed panel, a first 3G oscillator, a second 3G oscillator and a 3G oscillator parasitic piece. According to the utility model, the coupler is applied, the radiation interference can be reduced, the communication capability and capacity are effectively improved, the directional antenna and the omnidirectional antenna are integrated, and the outdoor coverage is facilitated.
Owner:GATRONICS ELECTRONICS WUXI
Carbon fiber whip antenna structure and forming method
ActiveCN116505223BLower the resistance valuereduce adverse effectsAntenna supports/mountingsRadiating elements structural formsFiberCarbon fibers
The present application relates to whip antenna technical field, specifically to carbon fiber whip antenna structure and forming method. The existing carbon fiber whip antenna conduction performance is poor, the resistance value is large, the radiation efficiency is low. The carbon fiber whip antenna structure includes first metal joint, carbon fiber tube and second metal joint and the conductive wire connecting two metal joints. Its forming method is that the first metal joint and the second metal joint are installed at both ends of the mold; carbon fiber prepreg is laid; the conductive wire is wound; carbon fiber prepreg is laid again; the antenna outer surface is wrapped with metal mesh; the metal mesh is wound and fixed with the conductive wire; the connecting part of the metal mesh and the first metal joint and the second metal joint is wound with carbon fiber prepreg respectively; compaction and solidification; demolding. The carbon fiber whip antenna has good conduction performance, small resistance value, high resistance radiation efficiency, light structure quality, excellent mechanical properties, fatigue resistance, corrosion resistance, large power bearing, high radiation efficiency, long service life, high efficiency of the workpiece.
Owner:SHAANXI TIANYI ANTENNA
A broadband high-gain whip antenna
This application provides a broadband high-gain whip antenna, belonging to the field of antenna communication technology. The radome contains a radiating metal whip, which is a multi-segment metal tubular structure. Multiple isolators are arranged between these segments. Two completely independent antennas within each isolator are integrated into a common rod structure. A choke matching device is installed within the antenna base, and the bottom of the base houses a first antenna connector and a second antenna connector. Therefore, by designing isolators to change the length of the radiating whip, the operating frequency of the antenna is matched to the length of the radiating whip. Increasing the length of the radiating whip in the low-frequency band increases gain, while reducing the length in the high-frequency band prevents radiation pattern distortion, thus reducing gain. This improves the low-frequency gain and reduces the gain reduction problem caused by high-frequency pattern distortion.
Owner:CHONGQING HUAWEI IND GRP
Folding whip antenna structure
The utility model discloses a folding whip-shaped antenna structure, which comprises an antenna mast formed by splicing a plurality of antenna units, two adjacent antenna units are connected through a connecting piece, the connecting piece comprises an upper connecting part and a lower connecting part, the upper connecting part is in threaded connection with the antenna units, and the lower connecting part is in threaded connection with the antenna units. The lower connecting part is connected with the antenna units in an inserted mode, the center of the connecting piece is connected with an extension rope, the bottom end of the extension rope is connected with a first spring, and the first spring is located at the bottom of an inner cavity of the antenna unit at the lowermost end of the antenna mast. According to the invention, the antenna units are more convenient to connect and disassemble due to the insertion mode between the antenna units, and meanwhile, the folding function of the antenna mast is realized through the connection structure of the spring I, the extension rope and the connecting piece.
Owner:BEIJING DAHUA HENGWEI COMM TECH CO LTD
Segmented combined shipborne ground wave radar broadband transmitting antenna, antenna array and method
ActiveCN114142209BSimultaneous aerial operationsAntenna supports/mountingsBroadband transmissionWhip antenna
A segmented modular shipborne ground wave radar broadband transmitting antenna, antenna array, and method include a segmented modular transmitting antenna mast fixed to a horizontal support platform on the deck, multiple guyed ground anchors, and a matching network. The horizontal support platform is provided with a hydraulic swing cylinder, the hydraulic swing cylinder is provided with an antenna base, and a segmented modular transmitting antenna mast is mounted on the antenna base. The antenna array includes two transmitting antennas, which are separated on both sides of the ship's side and arranged in a staggered manner. The method is to input the phase of the excitation signal of the first antenna, continuously adjust the phase of the excitation signal of the second antenna, and design a multi-channel switching broadband LC matching network to obtain maximum radiation energy intensity. The present invention adopts a whip antenna form with a relatively small volume and simple appearance. Through the segmented modular design and high-strength components and fixing method design, it can be deployed in the limited space of the shipborne platform and adapt to the harsh environment of the ocean and the hull. The overall structure of the antenna is compact, and broadband transmission characteristics are achieved in a small size; the connection is reliable, and installation and replacement are simple and convenient.
Owner:FIRST INSTITUTE OF OCEANOGRAPHY MNR
Multi-angle short-wave blind-area-free adjustable vehicle-mounted whip antenna lodging device
ActiveCN223390763UAntenna supports/mountingsAntenna adaptation in movable bodiesIn vehicleClassical mechanics
The utility model belongs to but not limited to the technical field of vehicle-mounted whip antennas, and discloses a multi-angle short-wave blind-area-free adjustable vehicle-mounted whip antenna lodging device, which comprises a lodging base, a lodging rod and a locking device, the lodging base is formed by welding a lower supporting rod and a lodging plate, the lodging plate is in a large cut circle shape, a hinge hole is formed in the circle center of the lodging plate, and limiting holes are evenly distributed in the upper semicircle of the lodging plate. The lower supporting rod is movably connected with the lodging rod; positioning shaft holes are formed in the lower ends of the lodging rods, positioning shafts sequentially penetrate through the positioning shaft holes in the lower ends of the lodging rods and hinge holes in the circle centers of the lodging plates, ball nuts are installed in threaded parts of the positioning shafts, and hinge joint is completed through tightening; the locking device is composed of a side face nut, a pin with a pull ring and a spring, and the spring pushes the pin with the pull ring to penetrate through the lodging plate to form perforated pin connection. The locking device is low in structural cost, simple to manufacture, convenient to install, small in occupied space and labor-saving in locking, and the original antenna base and a vehicle body hole position do not need to be changed.
Owner:SHAANXI FENGHUO IND
Wading and attitude stabilizing device for whip antenna of ground penetrating radar
The utility model discloses a wading and attitude stabilizing device for a whip antenna of a ground penetrating radar, which relates to the technical field of applied geophysical exploration and comprises an antenna sleeve, a connecting cylinder and a tail end fixing cylinder. The antenna sleeve is used for sealing the antenna main body structure; the connecting cylinder is connected to one end of the antenna sleeve and is used for inserting a connecting cable and pulling the antenna main body; the tail end fixing cylinder is connected to the other end of the antenna sleeve, and the attitude of the antenna is controlled and adjusted by controlling the tail end fixing cylinder to be matched with the connecting cylinder. According to the utility model, the whip-shaped radar antenna is sealed through the antenna sleeve, so that the difficulty of shallow water area radar operation is overcome; the antenna is dragged to move through the connecting cylinder, and the horizontal attitude of the antenna is manually regulated and controlled through the cooperation of the tail end fixing cylinder, so that the stability and controllability of the attitude of the whip antenna are improved, and the observation data error of a radar is reduced.
Owner:ANHUI TRANSPORT CONSULTING & DESIGN INST
Ship whip antenna fixing device
PendingCN121282607AAntenna supports/mountingsRadiating elements structural formsWhip antennaMechanical engineering
The ship whip-shaped antenna fixing device comprises a bottom fixing rod, and the top of the bottom fixing rod is provided with a disc-shaped adapter plate; the bottom surface of the disc-shaped adapter plate is vertical to the top of the bottom fixing rod, and an antenna mounting rod is vertically arranged on the top surface of the disc-shaped adapter plate; and the antenna mounting rod is used for mounting a ship whip-shaped antenna. Compared with other types of ship whip-shaped antenna fixing devices, the ship whip-shaped antenna fixing device adopts the sawtooth-shaped bent plate, so that the friction force of a mounting contact surface is increased, and the antenna mounting is extremely firm; compared with other types of devices, the device is fixed through a disc-shaped adapter plate bolt, and disassembly, assembly and maintenance are convenient.
Owner:CSSC HUANGPU WENCHONG SHIPBUILDING CO LTD
A passive positioning reconnaissance system and method based on a magnetoelectric antenna and multi-sensor and micro unmanned aerial vehicle cooperation
The application belongs to the field of unmanned aerial vehicles, and discloses a passive positioning reconnaissance system and method based on a magnetoelectric antenna and multiple sensors and a micro unmanned aerial vehicle. The magnetoelectric antenna is arranged at the bottom center of the unmanned aerial vehicle platform, and the magnetoelectric antenna is composed of a piezoelectric layer and a magnetostrictive layer. A damping structure is arranged between the magnetoelectric antenna and the platform. A multiple sensor module is integrated inside the platform, including a GPS, an inertial sensor, a barometer and a magnetometer, for real-time solving of the own pose. A GPS antenna, a whip antenna and a sleeve monopole antenna are arranged on the top of the platform, the arm and the landing gear respectively, forming a spatial staggered layout. In operation, the magnetoelectric antenna captures target electromagnetic signals, combines the own pose obtained by the multiple sensors and the environment image collected by a high-definition camera, and transmits the signals to the ground end for fusion and solving of the target position. The spatial layout of the antenna makes the isolation degree better than -35 dB, solving the electromagnetic compatibility problem. The damping structure makes the vibration transmission rate as low as 0.04, ensuring signal stability.
Owner:XIDIAN UNIV
Spiral loading antenna and comprehensive radiation system based on spiral loading antenna
PendingCN120432862ARadiating elements structural formsAntennas earthing switches associationMulti bandFrequency spectrum
The invention discloses a spiral loading antenna and a comprehensive radiation system based on the spiral loading antenna. Relates to the technical field of antennas. Comprising a first loading spiral and a second loading spiral which are used for loading reactance to the spring whip antenna; the first loading spiral is arranged in the middle of the spring whip antenna, the second loading spiral is arranged at the bottom of the spring whip antenna, structural improvement is carried out on the basis of an existing multi-frequency comprehensive radiation system, inductance loading of the spiral loading antenna is achieved through winding of the spring whip at a specific position, and the electrical performance requirements such as the working frequency of the spiral loading antenna are met. The radiation unit can return after bending deformation at any angle in all directions by using the softness and elasticity of the spring whip; according to the comprehensive radiation system, the multiple spiral loading antennas are installed at special physical space positions, the radiation efficiency is improved, the problems of mutual coupling, shielding and the like between the multi-band spiral loading antennas are solved, and therefore the purposes of improving the radiation intensity and expanding the effective coverage radius of a frequency spectrum are achieved.
Owner:SICHUAN JIUZHOU ELECTRIC GROUP CO LTD
UHF ultra wide band omnidirectional communication antenna based on medium filling
PendingCN121416849ASimultaneous aerial operationsAntenna supports/mountingsUltra-widebandCommunications system
The invention relates to the technical field of radio frequency antennas. The UHF ultra wide band omnidirectional communication antenna comprises a matching transition structure and a radiation whip-shaped structure which form a whip-shaped antenna, the radiation whip-shaped structure is a metal cylinder structure, the front end of the radiation whip-shaped structure is coaxially connected and fixed with the matching transition structure, the front end of the matching transition structure is connected and fixed with a feed connector, and the feed connector is connected and fixed with the radiation whip-shaped structure. The feed connector penetrates through the matching floor and is fixed at the central position of the matching floor, a coupling sleeve is arranged at the circumferential position of the matching transition structure on the matching floor, and the inner ring of the coupling sleeve and the radiation whip-shaped structure are filled with filling media. The ultra-wideband whip antenna can effectively solve the limitation that the impedance bandwidth of a common quarter-wavelength whip antenna with the voltage standing wave ratio (VSWR) smaller than 3 is only about 30%, has the characteristics of ultra wideband and high reliability, greatly improves the working stability of the antenna in an air environment, realizes the ultra-wideband characteristic of the whip antenna, and can be widely applied to an omnidirectional communication system.
Owner:GUIZHOU AEROSPACE NANHAI SCI & TECH
Impedance matching method, device and system of telescopic antenna and wireless communication terminal
PendingCN121097375AAntennas earthing switches associationTelescopic elementsControl signalWhip antenna
The invention provides an impedance matching method, device and system of a telescopic antenna and a wireless communication terminal, and belongs to the technical field of wireless communication, and the method comprises the steps: determining the real-time length of the telescopic antenna; determining a real-time adjustment parameter of the impedance matching circuit based on the real-time length; and sending a control signal to the impedance matching circuit based on the real-time adjustment parameter, wherein the control signal is used for adjusting the characteristic impedance of the telescopic antenna. The real-time adjustment parameter of the impedance matching circuit is adjusted according to the real-time length of the telescopic antenna, so that the characteristic impedance of the telescopic antenna is adjusted, it is ensured that the characteristic impedance of the telescopic antenna is always matched with the characteristic impedance of a radio frequency system, and the communication effect of the telescopic antenna is effectively improved.
Owner:BEIJING GUODIAN GAOKE TECH CO LTD