"Hong Kong Autumn Lighting Fair" was held at the Hong Kong Convention and Exhibition Center from October 27 to 30, 2012. American NNCrystal Company (Booth No .: 3CON-098) brought its remote excitation products to the exhibition. According to NNCrystal, the principle of remote excitation technology is to directly use a blue LED light source with a fluorescent device. The resulting white light source can achieve different CCT (2400K-6000K), CRI can reach 80-95, and the angle of light can reach 270 degrees. , The product can be widely used in bulb lights, downlights, street lights. NNCrystal pointed out that the advantages of using this remote solution are: * The heat generated by the chip and the phosphor is effectively separated, with good heat dissipation and high light efficiency * Because it is a remote excitation technology based on silica gel, it can work stably at 150 degrees, so it is more suitable for high-power lamps and the fluorescent device will not yellow when it is lit for a long time. * Convert LED point light source into surface light source, the light is very uniform, no glare, reduce the loss of diffuser * Different color temperature and color rendering index can be achieved with the same blue LED plus different remote fluorescent devices, which simplifies the supply chain in the production of LED lamps and reduces the capital turnover period * Blue LED does not need to be divided (450-460 nanometer chips), reducing costs * The remote fluorescent device based on silica gel can make the design of large angle bulb more flexible NNCrystal particularly emphasizes that the light source using remote excitation technology has high uniformity, uniform color temperature distribution, uniform light intensity distribution, and no glare; and can increase the overall light rate by 15% -20%, compared with the same power lamps, can reduce the light source The number of chips and reduce the heat sink, reduce costs. Relying on the leading nano-fluorescent material technology and experienced management team, NNCrystal has developed a series of high-efficiency, high-temperature-resistant remote fluorescent devices based on silica gel, based on the product line and complete supply chain in mainland China. Production capacity of quality fluorescent lenses and devices. NNCrystal said that it has the ability to design remotely excited fluorescent devices and lamps and lanterns, and can provide overall solutions for LED lamp manufacturers.
An internal active GPS Patch Antenna with cable is used in most mobile devices today that require high signal strength in a small form factor. It is the highest performing solution of all antenna types.
Gps Patch Antenna Description:
- Size: Approx. 25*25*10 mm / 0.98*0.98*0.39 inch
GPS Patch Antenna,GPS Patch Built-in Antenna,Patch Antenna,Passive Patch Antenna Shenzhen Yetnorson Technology Co., Ltd. , http://www.yetnorson.com
Usually consisting of a specially formulated dielectric ceramic, a trace is printed on the substrate to get the desired right hand circularly polarized Patch Antenna topology. The patch is mounted on a PCB; underneath the PCB is the Low Noise Amplifier (LNA) which amplifies the GPS signal before being transmitted through the coaxial cable and connector to the receiver.
This design application note is intended to help the antenna integrator understand the relevant parameters affecting the antenna performance.
Yetnorson recommends that the integrator strictly follow the guidelines in this application note. Upon your device prototype completion, Yetnorson can provide further optimization by offering custom tuning and testing services for the antenna in your device.
- Central frequency: 1575.42 MHz
- 8 cm cable
- Amplifier gain: 28dBi
- Connection: dip soldering
- Standing wave ratio: less than or equal to 1.5
- Impedance: 50ohm
- Noise coefficient: less than 2.0
- Dc voltage: 3 ~ 5V
- Dc current: 10 ma
Gps Patch Antenna Specification:
- Material: Metal + Plastic
Gps Patch Antenna Pictures: