Alaa Imran

11 Questions 34 Answers 0 Followers

Questions related from Alaa Imran

In antenna design , is it necessary to obtain AR bandwidth = RL bandwidth ?

hello , which band width is important in CP antenna ARBW or RLBW ? and is it necessary to make AR bandwidth equal or near to RLBW ? Thank you

18 May 2019 5,111 9 View

How can i find input impedance of circular patch antenna at specific point in the circumference using CST siftware ?

Hello every one. I want to make quarter wave transformer . how can i get antenna input impedance value at specific point on the circumference ? my patch is circular with 9.5mm radius?

27 April 2019 5,874 3 View

Is it necessary to connect ground plane of elements in MIMO system?

Hello, I want to make 2 elements mimo antenna . in fact, my element is a monopole antenna . Some papers said it is necessary to make connection between them ground planes . is that true ? and...

03 April 2019 680 7 View

Is there any "advance antenna lab. " in one of the Iranian Universities ?

Hello, Im looking for Antenna Lab.which has the ability to manufacture and measure reconfigurable or 5G antennas . i read a lot off Excellent articles for Iranian authors and i guess there are...

04 March 2019 4,247 2 View

What is the best conductive glue sutible for bounding beam lead diode (DSM8100-000)?

Hello im planing to bound this small diode DSM8100-000 (e.g. 0.7mm) in my reconfigurable antenna using conductive epoxy due to small size problem. i will thankful to any one suggest good an epoxy...

26 February 2019 9,737 2 View

Are there big differences betwenn simulation and mesured values for reconfigurable antenna?

Hello im working on reconfigurable antenna using beam-lead diode. In my simulation , i represented this diode with its equivalent circuit (LR) for ON state and LC for OFF state. my question is...

12 February 2019 9,221 7 View

Why main lobe of monopole antenna appear to backside direction ?

Hello Im working at simple monopole antenna for WLAN. the direction of main lobe appear at 160 degree ! any one know why ? and how can i fix it? thanks

24 January 2019 2,644 7 View

How to calculate Monopole antenna Length exactly for given resonant frequency ?

Hello During my survey on monopole antennas , i found that monopole antenna length equal to (lmda g/4) as standard formula . it appear easy to find required length whenever we have desired...

23 January 2019 8,630 3 View

Waveguide port in CST is shifted?

I'm trying to run antenna using port 1, i picked up area then I calculate K parameter using solver. as you can see this port is shifted from substrate and ground plane. is this case normal or i...

01 January 2019 2,422 26 View

Can remote station which has one antenna (signal output) communicate with AP having mimo system (multi input ) in 802.11 ax ( the new wifi series ) ?

AP and remotE STA work as MISO?

24 December 2018 3,956 6 View

How can i design compact ( small size ) microstrip pach antenna using shorting post ?

Hello Im trying to design compact MSPA . i read a lot of papers about size reduction techniques using shorting post . put , unfortunately , no author explained the steps or procedures of how to...

10 December 2018 9,595 7 View