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Actually, our aim is placing a Access Point inside this box and make it unreachable for any clients or other devices by air. Because using a set of attenuator, phase shifters etc. we want connect this AP to another client (that will be placed also another shielded box) as conducted to simulate...
Hi all,
I want to manufacture a box which can attenuate a signal @ 5GHz up to 50 dB. I will use this box to create a controlled test environment. We have produced a box from Nickel-Chromium thas has a width around 6mm but it could not give sufficient amount of shielding. Some guys said coating...
Hi everybody,
I have a question that puzzles my brain for a long time. I am accustomed to see patch or other types of printed antennas placed on top layer of pcbs. But few weeks ago I saw a microstrip koch fractal antenna that is placed in the second layer of the pcb. (between two dielectric...
Thanks to all of you for your valuable comments. Also special thanks to Jiripolivka for correcting my unit errors, I will be more careful from now on. After your comments I got some new questions in my mind. Jiripolivka, you say that adding extra amplification stages will also amplifies the...
Hi everybody,
First of all I am a newbie in RF design issues so please don't bite me for my possible stupid questions and comments :grin: Anyway, I am trying to design a low noise preamplifer for 5 GHz ISM band using Infineon LFP760 transistor. I have constructed the recommended circuit...
Hi all,
I need some help about antenna impedance matching. I have a design with a dual band antenna which is fed by the output of a power amplifier. and from amplifier output
to antenna there are pads for 3 series elements and for two shunt elements. Also path from the power amplifer output to...
Hi all,
first of all i would like to confess that i am a newbie in rf design and i may ask very silly questions. please forgive me and i am waiting for your responses.
I am trying to design a pifa and/or ifa antenna (all of them are PCB microstrip antennae) in cst design environment. when...
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