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The present invention is to provide an antenna device with the isolation among feedpoints being further improved. In order to achieve this goal, the present...
Three-dimensional integrated structure comprising an antenna
The three-dimensional integrated structure including a support element, an interface device connected to the support element by first electrically conductive...
Protective ballistic radome for a satellite antenna
A protective ballistic radome for a satellite antenna which can turn about an axis of rotation, has: a circular support in the form of a ring, having an axis of...
Antenna bandwidth-optimized by hybrid structure comprising planar and
The invention relates to a hybrid antenna structure that comprises at least one electrically insulating substrate, at least one electrically conductive coating...
Antenna and electronic device for close proximity wireless communication
According to one embodiment, an antenna includes first and second coupling elements and first to fourth connecting elements. An electrical length between a...
Wireless antenna for RFID tires
An RFID device for tires utilizes a wireless antenna. The antenna is formed of a pair of spaced apart electrically conductive rubber units. The conductive...
Wrist-worn communication device
A communication device, including a device casing, an external connection element, and a first metal element, is provided. A ground element and an antenna...
Antenna apparatus for portable terminal
An antenna apparatus for a portable terminal having a main board is provided. The antenna apparatus includes a main antenna that electrically connects to a feed...
Broadband antenna and wireless communication device employing same
A broadband antenna is mounted in a metal piece and includes a radiating portion, a ground portion, and a feed portion. The radiating portion includes a main...
Three dimensional antenna dome array
According to one embodiment of the invention, a wireless network device comprises wireless logic and a heat dissipation unit that encases the wireless logic....
Near field communication with matching circuitry
A matching circuit of a near field communication (NFC) device includes a resonance unit connected between a first terminal and a second terminal of an antenna....
Male connector assembly with antenna
A male connector assembly is plugged into a female connector. The male connector assembly includes a male-head connector and an antenna. The male-head connector...
Platform assemblies for radio transmission towers
Platform structures and platform assemblies are provided for supporting a plurality of radio frequency (RF) antennas and the weight of one or more workers. One...
Harmonic cavity resonator
Cavity resonators have a multitude of applications in radio-frequency, microwave, and vacuum electronics. Cavity resonators are used as frequency selective...
A directional coupler includes a main line and a subline. The main line connects an input port and an output port. The subline connects a coupling port and a...
Radio wave half mirror for millimeter wave band and method of flattening
To provide a radio wave half mirror for a millimeter wave band which can flatten transmittance characteristics and a method of flattening the transmittance of...
Multi-mode resonator/filter comprised of first and second columnar central
conductors disposed within a...
Provided is a multi-mode resonator in which four resonance modes are degenerated, a dielectric member is not necessarily required, and enhanced efficient use of...
Reduced backdrilling with quarter wavelength transmission line stubs
Embodiments of the present invention provide for a transmission line stub that includes a via stub of a conductive via. The conductive via includes a via stub...
Radio-wave half mirror for millimeter waveband and method of smoothing
A radio-wave half mirror for millimeter waveband is fixed inside a transmission line propagating electromagnetic waves of millimeter waveband in a single mode...
Non-reciprocal gyromagnetic phase shift devices using multiple
A non-reciprocal gyromagnetic phase shift device for microwave signals is provided. The device has a section of waveguide with at least two stacked chambers in...
Power storage device and battery temperature regulating method
A power storage device includes a case in which at least one unit cell is housed; a heat exchanger (31) that is provided in a wall surface of the case so as to...
Battery module of excellent heat dissipation property and heat exchange
Disclosed herein is a battery module including two or more plate-shaped battery cells sequentially stacked, wherein each of the plate-shaped battery cells is...
In certain embodiments, an apparatus comprises a battery housing and mechanical switches. The battery housing is configured to house one or more batteries and...
Secondary battery pack of embedded type with novel structure
A secondary battery pack is provided. The secondary battery pack has a structure in which a protection circuit module (PCM) is mounted to a top of a...
Rechargeable battery pack and electrical hand tool device
The invention relates to a rechargeable battery pack, for use with an electrical hand tool device and which includes at least two series-connected rechargeable...
Method for manufacturing sealed battery
Disclosed is a method for manufacturing a sealed battery capable of reducing leakage of helium gas introduced into an exterior. A method for manufacturing a...
Secondary battery employing safety device
Disclosed herein is a secondary battery having a mechanical connection sensor, as a safety device, fixed to the outer surface of a prismatic or pouch-shaped...
Method for manufacturing lithium secondary battery
Provided is a method for manufacturing a lithium secondary battery which is capable of preventing a local deposition of a metallic foreign substance at a...
Prelithiated current collector and secondary lithium cells containing same
The present invention provides a battery or supercapacitor current collector which is prelithiated. The prelithiated current collector comprises: (a) an...
Battery cell of curved shape and battery pack employed with the same
Disclosed herein is a battery cell configured such that an electrode assembly of a cathode/separator/anode stack structure is mounted in a changeable cell case...
Continuous prismatic cell stacking system and method
A continuous prismatic cell stacking system and method is disclosed. The system comprises: (a) devices on the system to supply a separator layer, a cathode...
Fuel cell stack
A fuel cell stack includes a plurality of stacked fuel cell units and at least one stack end element that are clamped a clamping device. The clamped fuel cell...
Voltage monitoring device of stack
A device for measuring stack voltage includes a stack part and a connector. The stack part includes terminals of a bipolar plate extending outward from a side...
Semi-solid electrodes having high rate capability
Embodiments described herein relate generally to electrochemical cells having high rate capability, and more particularly to devices, systems and methods of...
A redox fuel cell comprising an anode and a cathode separated by an ion selective polymer electrolyte membrane; means for supplying a fuel to the anode region...
High surface area flow battery electrodes
A flow cell battery includes at least one anode compartment and at least one cathode compartment, with a separator membrane disposed between each anode...
An electrolyte membrane 22 constituting a membrane electrode assembly includes thick portions 23 having a relatively large thickness. The thick portions 23 have...
Polymer electrolyte membrane for fuel cell, membrane electrode assembly
and fuel cell including the same
Disclosed are a polymer electrolyte membrane for fuel cells and a membrane electrode assembly and fuel cell including the same. The polymer electrolyte membrane...
Method for manufacturing reinforced membrane electrode assembly and
reinforced membrane electrode assembly
The present invention provides a method for manufacturing a membrane electrode assembly which improves the reliability of seal, mechanical strength, and...
Solid oxide fuel cell system
A solid oxide fuel cell system is disclosed. The solid oxide fuel cell system includes a cell stack having multiple adjacent fuel cells; a reformer that reforms...
Cooling system for eco-friendly vehicle
A cooling system for an eco-friendly vehicle, may include an unified radiator that cools working fluid flowing therethrough to cool an electric power component...
Power generation system and method of operating the same
A power generation system includes: an air intake passage; a fuel cell system that includes a fuel cell; a case configured to house the fuel cell, a ventilator...
Method for generating injected current of fuel cell stack
Disclosed herein is a method for generating an injected current of fuel cell stack, including: generating a synthesized frequency current in a form in which a...
Systems and methods for controlling cabin heating in fuel cell vehicles
System and methods for controlling and optimizing coolant system parameters in a fuel cell system to obtain a requested cabin temperature in a fuel cell vehicle...
Fuel cell stack
A fuel cell stack has a first block having a first number of cells, a first fuel supply channel for supplying fuel gas to the first block, a collecting channel...
Fuel cell humidification management method and system
A method of managing humidification for a fuel cell power system comprising, supplying air to a cathode inlet stream of a fuel cell. Detecting a fuel cell...
Removal of non-conductive hydrophilic coatings from lands of fuel cell
A bipolar plate for a fuel cell is provided including a plate having an active surface with a plurality of flow channels formed therein. The plurality of flow...
Method for manufacturing lead-acid battery
Provided herein is a lead-acid battery for which the risk of breakage of a current collecting lug part of a plate while in use is eliminated by simple means. At...
Method for producing a catalyst for fuel cells
An object of the present invention is to provide a production method which can increase the activity of a catalyst particle comprising a core particle and an...
Manufacturing method of fibrous perovskite-type oxide catalyst
A manufacturing method of a fibrous perovskite-type oxide catalyst includes: a first preparing step; a jetting step; a heating step; and an impregnating step....