Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Recent content by Eng.Wad

  1. E

    Antenna should be Single-sided or double-sided??

    Re: Antenna should be Single-sided or double-sided? Well.. with double sided the thickness between radiator and GND will matter a lot.. this helps in bandwidth enhancement.. the advantage of single sided is ease of fabrication especially for flexible substrates, it will help you avoid the...
  2. E

    Simulation antenna in flexible substrate Kapton

    why don't you add it as a new material? find its electrical properties and insert them. I do this in CST, is this option available in ADS ?
  3. E

    RF Test - human tissue equivalent

    Have you first done with simulated results? did you use voxel data, phantoms? you have to consider which part of the body you want to test your antenna with.. you can find body tissue properties in the official website of FCC in case you want to build your phantom in your software
  4. E

    Second resonant frequency of a microstrip antenna

    I press on what jeeudr said "Does it have any extensions/slots or other modifications ?" make sure of that first, then go for justifications of your results
  5. E

    Can any one help me with these equations?

    Re: Can any one help me with these equtions? you better grasp what's in the reference cited in that paper, find ref [14]
  6. E

    What's the difference between a printed antenna and a mircrostrip antenna?

    same.. printed like PCB, which means it has a very small height (thickness) in "micros" and micro is the very term of microstrip antenna.. in books some use printed and others use microstrip and when you see the contents, they tell you they could be the same..now, many researchers use the term...
  7. E

    Cst microwave studio suite 2011

    your port or your dimensions..can you tell how many mesh cells you have? see that at the bottom corner at your right
  8. E

    Design of UWB antenna for WLAN applications

    you can start with any basic designs like rectangular, circular, square etc.. then apply techniques like notch, bevelling, slots, steps (stairs) to enhance or expand your bandwidth.. also note how important is your ground in enhancing the overall bandwidth. as long as you can get a good...
  9. E

    What's wrong simulation in CST changing material

    Have you set your boundary conditions and background properties?
  10. E

    A minituarized uwb antenna design

    Hi Zuhura, You can read on chapter 9 of (Broadband Microstrip Antennas By Girish Kumar, K. P. Ray). Why did you choose monopole?
  11. E

    [SOLVED] Any theory for (off center fed microstrip antennas)?

    Hi everyone, I'll be glad if can provide me with documented materials about "off center fed microstrip antennas".. Theory and preferably about the mechanism, what things have to do with impedance ..I've come across some researches, but they seemed to implement the way with no much theory...
  12. E

    Bandwidth requirement of Ultra Wideband Antenna

    Hi there, well, the antenna is considered to be UWB when it has minimum 25% of bandwidth within the range released by FCC calculate it from here BW = [f (higher) -f (lower)]/ f (centre) f centre = [f (higher) +f (lower)]/2 hope this helps
  13. E

    [SOLVED] SAR calculation in CST MWS

    Hi everyone, I have obtained SAR results from CST MWS, and now I'm confused about the selection of the values that have been calculated. I wonder which one to take, is it Total SAR (rms) [W/kg] or Max SAR (rms,10g) [W/kg] Thanks a lot Wad
  14. E

    [SOLVED] CST Boundary conditions

    Hi everyone, Anyway, I'm just a beginner in CST and your help will be appreciated. I just designed an UWB antenna in CST MWS, the antenna is : microstrip rectangular patch, partially grounded substrate. BACKGROUND MATERIALS set to NORMAL, Waveguide PORT was designed accordingly. Now, here's my...

Part and Inventory Search

Back
Top