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Recent content by hilmanhalimra

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    Rectifier calculation??

    rectifier calculation Dear all, Could you help me... i have a device that consumes about 2000 W. it need 48 V dc as input. because of that i have to install some rectifier. the rectifier output current is about 30 A per module. Beside of that i have to backup my device by battery for about 4...
  2. H

    NLOS WiMAX characteristic ?

    so it is because WiMAX using OFDM, but how about the antenna gain. is there any gain requirement for WiMAX antenna? thanks for the reply:D:D
  3. H

    NLOS WiMAX characteristic ?

    sorry for asking such a basic question. i want to ask about NLOS WiMAX characteristic. i want to ask about if i want to make a WiMAX antenna is there any special technique to attain this NLOS characteristic? or the NLOS characteristic is attainned in the processing system?. thanks before.:?::D:D
  4. H

    frequency shifting????

    thank you for replying. i guest it is ok, because it just shifted for about 0.02 GHz. it's my mistake then.:D::D:D
  5. H

    frequency shifting????

    please help.... i designed a triple band antenna at 2.3,3.3, and 5.8 GHz. but when i measure it i get my antenna frequency shifted about 0.02 GHz to the higher frequency. i use Electromagnetic coupled for the feeding. can you tell me the reason and how to solve this. thanks before.....:D

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