31 Threads found on edaboard.com: Bowtie Antenna Design
I have design 'n simulate bowtie antenna with center frequency 250 MHz. The electric field waveform is ok. But the return loss is so big in center frequency ( about -8 dB). Do anyone know how to match it with 50 ohm coax, so i can get -10 dB return loss in center frequency ?
RF, Microwave, Antennas and Optics :: 22.07.2006 11:56 :: man_arief :: Replies: 2 :: Views: 1068
I am trying to simulate a wide band patch bowtie antenna using HFSS. From the literatures, I found the UWB bowtie antenna falls into two categories, slot bowtie antenna with CPW feeding and self-complementary bowtie design. I want to (...)
RF, Microwave, Antennas and Optics :: 16.11.2007 11:15 :: janlcc :: Replies: 2 :: Views: 1295
Hi can anyone post some useful links for desinging bowtie antenna for wider bandwidth in an ads...
Electromagnetic Design and Simulation :: 10.03.2011 19:11 :: madhu14365 :: Replies: 13 :: Views: 2068
see this paper
A Compact Printed bowtie antenna for Ultra-Wideband Applications in European conference 39 at 2009
but it is not common dipole
RF, Microwave, Antennas and Optics :: 19.03.2011 11:18 :: ferdows :: Replies: 7 :: Views: 906
i want to make an array of 4 bowtie antennas in HFSS for GPR application in the frequency range of 800-1000MHz.can anyone plz post me its design and dimensions.can cpw bowtie be used for GPR apllications.
Software Links :: 27.09.2011 15:06 :: ayerokk :: Replies: 2 :: Views: 56
i have to design a bowtie in hfss
3-18 GHz, gain>=0, omnidirectional
is it possible? some ideas?
RF, Microwave, Antennas and Optics :: 01.12.2011 09:20 :: andrea83x :: Replies: 3 :: Views: 607
we cant calculate the impedance of bowtie
RF, Microwave, Antennas and Optics :: 26.12.2011 13:22 :: ferdows :: Replies: 7 :: Views: 729
I want to have efficient way of designing a bowtie antenna for uwb applications.
Can any body provide me with the tutorial...
RF, Microwave, Antennas and Optics :: 09.03.2012 11:29 :: sameervedula :: Replies: 2 :: Views: 744
Name modified Size Description
00index 20-Aug-2001 12:45 3k
13-double-quad.jpg 14-Sep-2001 11:11 159k
13cm/ 19-Jul-2001 00:28 -
13cm2lambda-slot.txt 02-Sep-2001 0
Microcontrollers :: 09.03.2002 00:00 :: jimjim2k :: Replies: 0 :: Views: 19478
Does anyone knows what is the irregular shape PCB patches surrounding the antenna in the schematic for? I know there's a slot antenna + bowtie antenna in the photo but I'm not sure what's those small patches are for.
PCB Routing Schematic Layout software and Simulation :: 01.09.2005 09:03 :: contagiouseddie :: Replies: 1 :: Views: 772
i built the bowtie antenna in the paper but it does not work, any one can help me in that.
RF, Microwave, Antennas and Optics :: 07.12.2006 05:24 :: mamsamae :: Replies: 1 :: Views: 677
I am currently designing a bowtie antenna using ansoft hfss for my final year project. Can anyone help me to explain why does most of the antenna has an input impedance of 50ohm. Is 50ohm consider as an effective impedance matching?If yes why?
Digital communication :: 02.04.2009 15:46 :: sugart :: Replies: 2 :: Views: 966
Did you do an Internet search?
There is no formula for bowtie dimensions that fits all applications. When you take some examples found on the Internet, you can scale them to the desired frequency.
The length depends on the taper angle and proximity of, for example, a ground plane (to get directivity).
By changing the taper angle (and dipole
Electromagnetic Design and Simulation :: 22.01.2011 10:47 :: WimRFP :: Replies: 3 :: Views: 1510
with using microstrip antenna dipole you cannot obtain wide band. if you want design on printed circuit board use bowtie antenna, you can obtain wide band.
Electromagnetic Design and Simulation :: 11.03.2011 03:48 :: sezgyno :: Replies: 8 :: Views: 1302
u can use dipole bowtie antenna which each pole printed on one side of substrate
RF, Microwave, Antennas and Optics :: 21.06.2011 11:54 :: ferdows :: Replies: 3 :: Views: 566
The easy one is the "log periodic" antenna. ... The second one is the "dual-bowtie" design that involves more sculpting, but you get a much more powerful ...
Software Links :: 24.08.2011 02:03 :: computersoftware121 :: Replies: 4 :: Views: 76
which kind of UWB u want to design ?
hi friend ,
i want any UWB antenna design ,that is example bowtie, or monopole disc ,or any antenna design using CST or HFSS
---------- Post added at 15:08 ---------- Previous post was at 15:05 ----------
hi friend ,iam not
Electromagnetic Design and Simulation :: 23.11.2011 04:38 :: saidaiahbandi :: Replies: 5 :: Views: 814
a simple dipole or bowtie in planner type and i think all common microstrip has more than this gain
RF, Microwave, Antennas and Optics :: 28.03.2012 14:05 :: ferdows :: Replies: 6 :: Views: 485
i have designed a bow tie antenna for GPR in CST that will work between 500mhz-2ghz but the reference impedance is 250 ohms and it will be having a coaxial feeding i need to design a BALUN that will convert 250 ohm to 50 ohms (coaxial cable).
can anyone help .
Thanks in advance
RF, Microwave, Antennas and Optics :: 09.10.2012 07:46 :: vaibhavlinkin :: Replies: 0 :: Views: 313
Check out this article:
"Novel antennas for ultra-wideband communications"
by N. Fortino, G. Kossiavas, J. Y. Dauvignac, R. Staraj
in Microwave and Optical Technology Letters, Volume 41, Issue 3 , pp. 166 - 169
based on a triangular (bowtie) monopole...Completely different from typical UWB antenna types...
Electromagnetic Design and Simulation :: 06.06.2004 09:28 :: mogwai :: Replies: 33 :: Views: 9872
Hi every body;
I want to measure the input impedance of this bowtie antenna in hfss,
I don't know what should i do.
could you please explain how should I feed this antenna in hfss (wave port, lumped port or other excitation). and how should I measure input impedance of it.
Electromagnetic Design and Simulation :: 07.10.2005 06:18 :: Marshal :: Replies: 10 :: Views: 1922
you can get the hfss full book off the ansoft site
there are other examples here.
also, you need to increase the number of passes to get the bowtie to converge like the one in the manual.
RF, Microwave, Antennas and Optics :: 25.01.2006 20:04 :: kevinj :: Replies: 2 :: Views: 1023
antennas for GPR:
2. Dipole --> more difficult for matching impedance
Electromagnetic Design and Simulation :: 22.07.2006 11:40 :: man_arief :: Replies: 9 :: Views: 3534
1 when i simulate a bowtie antenna in CST MWS 5.0, the computed radiating efficiency and total efficiency are 1.1 and 0.2 respectively, i am confused about that as the radiating efficiency is larger than 1, so i want to ask the accurate definition of radiating efficiency and total efficiency and the difference between them. Any indication will be
Electromagnetic Design and Simulation :: 26.09.2006 07:20 :: sanders :: Replies: 6 :: Views: 2541
I am currently designing a bowtie shape antenna...I wanna noe what is the purpose of the mesh plot in ansoft HFSS...anyone pls help me...tanx a lot!!!
RF, Microwave, Antennas and Optics :: 07.04.2009 14:52 :: sugart :: Replies: 5 :: Views: 1337
Hi I am currently doing my final year project on ultra wideband antenna and have actually designed an array of 2x2 bowtie antenna patch. I need design 1-4 equal split wilkinson power divider using microwave office 2002 but I have difficulties. Please help!! This is urgent!!!
RF, Microwave, Antennas and Optics :: 27.12.2009 21:13 :: limqikang :: Replies: 6 :: Views: 1572
Hi, I am trying to design bowtie antenna for 915Mhz. Please look on the mesh and guide me if its correct mesh or there need to be some improvements. Thanks
Electromagnetic Design and Simulation :: 10.03.2011 11:25 :: Techi :: Replies: 2 :: Views: 931
Hi friends i am working upon bowtie dipole antenna from 0.7 to 3 GHz..but it working fine fron 1.5 to 3.4 Ghz...what the necessary changes i need to make to operate it from 0.7 to 3 ghz..The following attachment is layout of my
Electromagnetic Design and Simulation :: 04.05.2011 11:31 :: madhu14365 :: Replies: 2 :: Views: 1196
but u ask for 500GHz and its too much
I'm not working in that frequency range, but looking at the new IEEE Transactions on Terahertz Science and Technology, it seem that the antenna structures are not much different from mm-wave antennas (e.g. bowtie).
RF, Microwave, Antennas and Optics :: 14.08.2012 08:13 :: volker_muehlhaus :: Replies: 12 :: Views: 471
I am trying to design a miniature antenna array to attach to a PCB that will receive the new HDTV signal known as ATSC signal. The array will need to individually tune each antenna to the different channels (NBC, CBS, PBS, ABC etc). I need each antenna to work independently from each other and assignable to a networked IP. (...)
RF, Microwave, Antennas and Optics :: 16.10.2012 14:43 :: amwardwell :: Replies: 1 :: Views: 288
You can google bowtie designs, but for Wimax at 3.5 GHz using it makes no better sense that an ordinary dipole.
bowtie dipole is used for "very" wideband applications, like 20-50% bandwidth.
RF, Microwave, Antennas and Optics :: 26.02.2013 16:42 :: jiripolivka :: Replies: 4 :: Views: 327