Search Engine www.edaboard.com

# Design Slot

213 Threads found on edaboard.com: Design Slot

## How to choose optimal width of waveguide for slotted waveguide antenna? (DFW)

Some authors start their design from cutoff frequency. (DFW/SIW slotted arrays). So waveguide has width a little wider to obtain cutoff frequency a little lower than slot resonating frequency. But i have many concerns. If waveguide is narrow, then guided length may be larger than free space wavelength. My idea: maybe it is good idea to (...)

## Slot Antenna UHF design

I d like to find the theorectical calculation to design a UHF slot antenna , i found some info only for waveguide slotted antenna , bu im interesting in the coaxial ones . Like

## Slot Charateristics in CST for slotted waveguide array

Hello, I am designing slotted waveguide Planar array in CST. For array design, i need design curves of slots characteristics. A longitudinal slot is in resonant condition when its admittance become purely real. I have simulated a slot with different lengths in CST (...)

## How to design non-longitudinal slot antenna (slotted waveguide/siw)?

Hi Terminator3, I guess you are telling slots like "f" and "g" in this figure (waveguide in TE10 mode). Right? 130941 There is a bit of information in "Modern Antenna design, 2nd Edition" by Thomas Milligan (Wiley-IEEE Press, 2005), section 5-24 . (I saw more information in some other book, but now I don't remember

## Substrate integrated waveguide cavity backed dumbbell shaped slot antenna

I am trying to design a substrate integrated waveguide slot antenna. I am following the paper attached herewith. I am new in this domain and so facing a lot of problems. Any help would be greatly appreciated. I request someone to see my .hfss file which I have made so far and help me by updating and correcting it.

## Planar Slot Antenna Backed by Substrate Integrated Waveguide Cavity

I wish to design a substrate integrated waveguide slot antenna. I have designed the antenna using hfss15.0 software. But my solutions are not matching with the original solutions of the paper. I am hereby attaching my .hfss file of my project and also the paper that I am following. I am new in this domain and I am not getting the desired (...)

## the problem about slot antenna's 2D pattern in HFSS

hi ,I did a simple slot antenna in HFSS using HFSS design kit to build the model. the target freq is 0.95GHz 129759129760 the S11 and smith chart is good 129761129762 so I simulatate the 2D pattern for slot antenna for single freq point at 0.95GHz

## the problem from 2D pattern in slot antenna by HFSS

hi ,I did a simple slot antenna in HFSS using HFSS design kit to build the model. the target freq is 0.95GHz 129750129751 the S11 and smith chart is good 129752129753 so I simulatate the 2D pattern for slot antenna for single freq point at 0.95GHz

## Double slot feed in CST MWS. Problems in feeding.

Hello, i'm a new in design antennas, and having some problems in repeating experiments. I dont now how correctly feed double slot antenna. 129544. The arrow indicates the attachment detector. I calculated the two cases, and the first is right for me, but it does not work. But second is working, but i dont now, is it correct?

## HFSS Slot antenna design

Hi. I'm simulating a 2.4Ghz slot antenna. Everything is well but when I do the Analyse all on HFSS v.13, this error pops up. HFSSdesign1 (DrivenTerminal) Port refinement, process hf3d error: Too few conductors were found on port p1. There should be one conductor for each terminal, with one additional reference conductor. Unintent

## Slot antenna and Practical issues

Hello Guys, I want to use slot antenna for an application. i am facing some issues. I will be thankful if i can get useful feedback from you guys before actully send design to manufacturers. 1- antenna was cut from the ground plane on one side of FR-4 sub and another side is feeding network. What kind of SMA connector i should

## Want to design PIFA w/ U-shaped Slots for Cellular Communication - Beginner, help!

Hi I'm a beginner using CST and I was wondering if anyone could help me to design a PIFA with U-shaped slots. I've taken an antennas course so I'm familiar with most of the terminology, but am not familiar with CST. I am able to create a PIFA fairly easily using an antenna design tool, but the U-shaped slot I am having (...)

## Slotline Simulation in Ansys HFSS

Dear all, as I am having some trouble with my antenna design, I started splitting it up in small problems: My very first problem is about designing a slot line and determining it's characteristic impedance Z_0. My simulation is quite easy: I have defined a slot line on a low dielectric (epsilon_r=3.5) substrate (...)

## How to best connect 868MHz RF to slot antenna in aluminum enclosure ?

Hi all, I Am currently working an a design, featuring an RFM22B 868MHz module, transmitting at upto 20dBm. The PCB i am designing fits into two slots in a aluminum profile, and the in bottom i will mill a slot antenna at 164,3mm. (See attached photo) 119024Tests indicate a feedpoint at 1/20 wavelength, on each side of

## Need help for designing a slotted waveguide array using Elliott's equations

Hi dear In design slot array, the most factor is obtaining accurate self admittance.When you use Elliott's first design equations,if your admittance does not accurate, you have a tolerance in Elliott's first design equation that lead to fail to converge. Best regards Amin

## Purpose of clocking blocks in SystemVerilog, how do they help mitigate race condition

About signals in a testbench the books "SystemVeril" states that "Drive too late or sample too early, and your testbench is off a cycle. Even within a single time slot (for example, everything that happens at time 100ns), mixing design and testbench events can cause a race condition, such as when a signal is both read and written at the same time"

## CPW-fed Slot Antenna Implementation (Fabrication)

Hi all I have just finished cpw-fed slot antenna design and I want to implement this design. Is there any good company that you advise me to send this design to for implementation? Best Regards

## Problem in designing a u-slot aperture coupled patch antenna

Dear friends, I am trying to design a u-slot aperture coupled patch antenna in millimeter-wave band (about 30 GHz) using CST and according to the picture attached. I have a few problems in the procedure: 1- I can not find "foam" in CST material library so I think I should make a new material myself. But the problem is that only the εr of

## Port Excitation for Slot Ring Resonator

Please help me, how i can assign port to slot ring resonator (RFID based tag) to make it workable. I design 8-bit slot resonator on circular patch using circular substrate on HFSS. Now i want to observe the resonances produce by the tag. so please guide me how can i assign port excitation to this design.