ADL5354 is that the high linearity pair is equilibratedRF and LO are balanced RF mixer, inputs the frequency and has good LO-RF to let out from 2300 MHz to 2900 MHz. balanced passive mixers, superior to and the intersection of 35dBm.IF and the intersection of frequency and range, from 30MHz to 450MHz, power change gain 8dB, single sideband SSB The intersection of noise and 10dB, the intersection of input and IP3, as 25dBm, the intersection of input and P1, for 11dBm, LO model drive to be 0 the intersection of dBm. and working the intersection of voltage and 3.3V-5.0V, spend the intersection of honeycomb and wireless the intersection of base station and receiver on mainly, wireless to chain changer,etc.. This text introduces ADL5354 main characteristic, block-diagram and typical application, assesses circuit diagram of board and component and disposes tables. ... Read more
In the wireless system, the work is put PA Linearity degree and efficiency are often two parameters that must be weighed. The engineers are all looking for a kind of valid and flexible distorted technology in advance of self-adaptation based on Volterra, can be used for realizing the high linearity degree that broadband RF work is put. The distorted technology of summing up different figures of this text in advance, introduce the characterized adaptive algorithm of a kind of innovative DPD linear circuit. ... Read more
Seeing that mobile phone and base station should support increasingly many honeycomb and other wireless standards at present, the aerial used for wireless application deals with more frequency bands than any time in the past. For the measurement that supports to be implemented to the base station of the honeycomb, this literary grace uses Rogers Company Rogers RO4350Bs double-deck last board dipole aerial. This compact aerial covers 900, 1,800 and 2,100MHz honeycomb frequency band, very suitable for counting with the intensity of low-cost portable electric field used for testing the intensity of electric field of base station of the honeycomb field intensity appearance Use together. ... Read more
The good horse mixes the good saddle. The corollary equipment has already become the increasingly important component in operator’s wireless networking, for this reason, trader’s constant innovative technology of the apparatus, has offered more ripe, green energy-conserving auxiliary products for operator. ” industry offers communication ” ‘ Network Specially elect 10 sections of corollary equipment to give a recommendation, offer to the readers. ... Read more
The summary, in order to promote the wireless development which passes the network back based on Ethernet, MEF has developed MBIA ‘ Wireless to pass back and carry out the agreement . This text has introduced the simple one to MBIA, has explained the importance of MBIA when it is based on Ethernet that operator dispose the business to pass the scheme back. ... Read more
Summary: This text designs Gbps wireless communication base station system facing mobile communication standard in the future on the basis of Virtex-5 FPGA, can have a complete one person who dispose again, can finish MIMO, OFDM, LDPC complicated signal punish algorithm, realize the wireless communication of 1Gbps speed. ... Read more
In the TD-SCDMA wireless network planning and construction, cover has been a difficult point all the time deeply in the university district, especially in the dormitory area of the university, the base station of great honeycomb can’t solve the room to cover with effectively, need making and is distributed and solved in the room systematically. But coordinate because of the owner, students obstruct, a great deal of reasons of investing in too big etc., make, distribute systematic difficulty to be relatively large in dormitory building, utilize, distribute system, make, it covers to be one comparatively reasonable means while being outdoor in the intersection of university and dormitory area. ... Read more
At the beginning of of 2009, with a part of the third generation of mobile communication 3G of Chinese industry and information industrialization The releasing of license plate, restrain Ann from preventing the bottleneck problem that the digitized wireless video of long distance of the trade controls development from being solved, realize communication technology merge with the intersection of Ann and trade -proof depth, bring new developing direction for the intersection of Ann and trade -proof development really. 3G car-mounted wireless hard disk video cassette recorder of science and technology of creating the world in Anhui is as the embodiment products of this technology, totally press close to the trade demand, with its strong function characteristic, get the general approval of the market fast. ... Read more
Consider from the intersection of network and construction aspect, TD-SCDMA have following several problem of mainly to gradual progress of TD-LTE: TD-LTE and other systems analyze, smooth the intersection of gradual progress and question, to the intersection of LTE and question, with organize the intersection of network and issue and terminal station issue of TD-LTE frequently LTE of gradual progress aerial of apparatus. ... Read more
