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317 Threads found on Horn Antenna
i am planning to design a VSAT antenna.... i managed to make a horn just need to add a reflector in front of this....Please can anyone describe me the geometry of Paraboic shape in CST? or what kind of extrude curve i have to use....this must be a great help for my personal projects. only the physical reflector design i am (...)
hi antenna experts. i designed a Reflectarray unit cell with proper phase shift in CST. i used unit cells in array and fed it by a horn antenna. the solution type is integral equation. now i want to know how can i gain the phase of each element(phase of fields or reflection phase ) after feeding by horn. thank (...)
Hi all. I'm working on Reflectarray. i have designed my unit cell by CST. after designing the unit cell i placed the cells in array form and excite it with a horn antenna. now, each element have it's own phase in re radiating field. so we should know the element phases to compensate them to make all elements radiate in phase, but we could no
What I remember is, wave guide also plays important role in this design ( including ridge thickness & height). Distance of probe from bottom,impedance plays crucial role. Remember one thing, you are transferring impedance from 377 ohm to say 50 ohm. so this transition should happen smoothly. Curvature of ridge is extremely important. What I recom
I have a horn antenna working at 144GHz with A=12mm and B=14mm. Then I'll illuminate a satellite dish of 57cm diameter with this antenna, with the feed located at the focal point of the parabola. I have the radiation pattern of the horn, made with MATLAB. The goal is to know the beam propagation (power radiation) pattern of (...)
125997 Any one help me to design Fresnel zone plate antenna in HFSS. The design has two elements. (1) A plate having circular rings of different radii. It can be made by printed technology on RT/duroid 5880. and (2) horn antenna as a feed. My doubt is how can I simulate this complete design (plate+horn)? how to simulate t
hi aswin, link below might help you.
hello everybody! i am beginner in the use of HFSS. I design pyramidal horn antenna, validate is ok.but error after change material to aluminium. Port refinement, process hf3d error: Port 1 does not have a solved inside material on either side.. Simulation completed with execution error on server: Local Machine. wh
Can anyone tell me the steps to design a conical corrugated horn antenna using hfss software???
I think it is all related to excitation modes or simulation problems. I am not expert in both areas. Mostly i saw papers on slot antennas using SIW. But interested in H Plane horn using SIW very much and will be happy to see if you got any good results.
hi guys, does anyone know about pillbox antenna for LMDS? now am doing a project about sector horn,but some happened.the questions as follows: first,how to design the aperture to meet the azimuth power pattern?now gain and HPBW are very well,but the power pattern is not suitable for ETSI. second,the peak of elevation power pattern is startin
How to make coaxial probe for horn antenna in feko. In feko example of horn with line feed i changed parameters and have achieved my desired results now i want to place probe like in hfss Microstrip patch antenna but i have no infinite ground in case of horn. Kindly mention steps and tell me how to know (...)
Hi every one, I am simulating a horn antenna with a wave port with two orthogonal modes (to get circular polarization), the combine option in Post processing tab is not available for me. it gives me this warning:At least one propagating mode is not considered at port 1. Can anyone help me please? Thank you very much
Hi, Please can someone guide me how to assign the port for the offset feed horn? For the focus feed horn, we have the aligned feeding towards our antenna but if we need to make it offset, we need to tilt it so it makes the feeding no longer align with the antenna. So my friend told me to use coaxial probe and assign (...)
Hi, I created a corrugated horn antenna model and I was trying to validate it but there is an error message "non manifold edges found for corrugated". I have tried to fix this issue using the solutions available in previous threads but its not working. Please help me! Thank you very much! Model file is attached.
Hi Everyone, I have designed a horn antenna for Bluetooth application and for simulation purpose I just want to make one with curved end. I have tried to do it by intersecting with circle, but the problem is when I changed the length of the horn antenna the shape of the curve is changed too and becomes flat. In case it (...)
Hi, I have radiation pattern results from anechoic chamber which I need to plot. The data which I have are the XY, XZ and the YZ plan each with co and cross pol data. I did the necessary calculation using the horn antenna(source) gain values. Now, how do I calculate the total E field gain? Example, in XY co pol at 5GHz, I have 360 values since t
for this range usually spiral cavity back or Ridge horn is used for more information u can see datasheet of the Q-Par co
Hi, If I understand you correctly, you are trying to model a realistic version of a horn antenna that could be 3D printed. You could model the horn with ABS material, for example, and then pick the internal faces and create shape from picked face and model that as gold material. However, you might also have to extrude this new shape to (...)
I'm simulating a grounded CPW in CST, I want to apply a proper boundary condition to it? who know what is the suitable boundary condition? what envirement i shoud use in CST? note that i'm simulating a GCPW fed horn antenna if this effect the boundary condition of structure... tanks
hi guys recently am doing a waveguide horn array antenna,could u give me some advice or e-books?any help is very greatful. thnx in advance! Tomsin
I want to simulate the plate as a reflector (by placing horn in front of plate) Assign a waveport excitation the the waveguide feed of the horn. Place the horn and the pate in a vacuum, where the edges of the vacuum box are at least a quarter wavelength away from the horn and plate. Assign a radiation boundary
Have you studied the currents on the outside surface of your horn antenna, particularly around the mouth of the horn? It sounds like you might have high currents that are leaking back onto the outer surface of your antenna, and these currents might be creating the radiation. I think there is a Field Monitor in CST that you (...)
With the EXPLOSION of 3d printing, has anyone come across a LOW COST way to fabricate microwave components for prototyping? I mean a method of making precision tolerance microstrip on FR4 or Duroid for maybe under $500? Or a way of making waveguide and antenna horn type components from sintered metals for maybe under $1000? It seems that
As you know nothing about antenna design, find and study a good textbook, like Kraus, J.D. antennas, and Kraus, Radio Astronomy. yes an awesome place to start to learn the basics and more you also need to decide up front what frequencies you want to receive. You are only going to use a dish and feedhorn if you are going to b
. I'm designing a horn antenna material used is aluminum .When I run it this error Fast sweep setup, process hf3d error: Failure in generating reduced matrices.. . please help me .thanks !!!
Hi, I've set up a pyramidal horn in CST MWS 2014 with the following properties: Directivity: ~20dBi Design frequency: 10 GHz Waveguide measurements is standard EIA WR-90 x-band. I've simulated this with a E-field monitor and a farfield monitor and the plots for the farfield has good agreement with what was expected from the analysis
Hi, everybody, i need all your help. I want to measure near-field of antenna, e.g. horn, like on the picture. 110917 And i need do it with a macro.110918 I used eField probe like here 110919 To measure all the aperture of horn, i need to use construction For...Next.
if you are in the garden, and have a rubber hose flowing with water...the water comes out at say 1 gallon per minute, in a wide gushing flow. You now screw on a nozzle at the end of the hose, and the pressure builds up, and the water starts to stream in a pencil thin beam, 20 feet away, but still at 1 gallon per minute...just more directional. Sa
Hi all! I'm a new-baby in using HFSS. I have a problem when creating a design of horn antenna. And I'm getting a error "Non-manifold edges found for part...". I don't know how to solve this problem. I will really appreciate your comments.
Usually, we have straight edge horn antenna's.But I want to simulate a concave edge horn antenna in HFSS. I have simulated the usual straight edge horn but I don't know how to make the edges concave.I have attached the picture of what I want to simulate.Please help me.Thanks in advance.107684
In the past I've been very successful making 10GHz rectangular horns using FR4 PCB with the copper side inside the horn. With care you can make the small end aperture exactly fit a waveguide flange. I used a VERY thin sliver of solder in the corners to hold the four sides together then fixed then flange to the horn with epoxy glue. Brian.
Hi anyone. I'm trying to simulate a parabolic reflector antenna with horn feed in FEKO.I want to solve this problem with MLFMM method.but when I run, this error appears: FMM and PO are not allowed in the same model! Help!
Q1: Suppose horn antenna is used to transmit wave toward a target equipment under test (EUT), then what is the plane of incidence. Since with reference to the Incidence plane, TE and TM is defined. Plane of Incidence is a plane perpendicular to the EUT surface which also contain the incidence wave. Q2: Is any formula available to calculate the
a spectrum analyzer with a horn antenna nearby will do it....would start with a 30 dB attenuator pad in between the antenna and the analyzer. You can "max hold" the spectrum analyzer and after many passes figure out the frequency. If you have access to the hardware, you could insert a directional coupler between the radar transmitter and (...)
hi everybody. I'm designing a wideband (6-18GHz) double ridged horn antenna. the waveguide that i want to use is WRD650. and it can operate in 6-18GHz. I used HFSS to design the waveguide , and the S11 was very bad(about -4dB). it means that no wave propagate inside the waveguide. i used PML at the end of waveguide but no changes seen. my que
I'm simulating a horn antenna in HFSS. I want to plot the phase of E-field on a plane.How can I do this????? please help Hi ghous001, You need to create your own variable in the fields calculator. You can do this by selecting: E, then ComplexPhase, then Mag in the fields calculator. Save this expre
I am simulating a horn antenna.Can i plot the phase of E field on a plane in it? - - - Updated - - - I am doing simulation in CST - - - Updated - - - Plz reply fast.thnx in advance
hi all. im working on a horn antenna with slant linear polrization in 2-6GHZ and 6-18GHz. the dimensions of horn antenna are very small. 150*60*50mm. and no more space for larger structure. what can i do for rotating the polarization. the power is 200w CW. gain is about 0-5dBi. thank you all.
There are broadband, multi-octave horn antennas, used for EMI/EMC measurements. They are not fed by waveguides, but from a transition to a coaxial connector. Regards Z
Hi all, I have a question about requesting S11 parameter in FEKO. I'm modeling a horn antenna, and I would like to "measure" the mismatch between the antenna's aperture and the air. How could I do that? Thank you in advance!
I recently heard of a group having success with electroplating designs constructed with conductive ABS plastic on a 3D printer. I'm dying to try it and see if it finally makes it possible to prototype corrugated horns!
hi. im trying to design a cylindrical waveguide that feeds a conical horn antenna. in this wavequide i want to rotate the linear polarization of inside wave by 45°. the loss is very important. using the half waveplate is a solution i think. but wave plates are usually narrowband . please help me to find a solution. thanks.
Try a quarter-wave plate inserted in the feed waveguide diagonal. Use a thin Teflon plate or a similar dielectric. I doubt it could work over the extremely wide bandwidth, though. Why you simply do not tilt the horns by 45 degrees?
Sometimes it is machined to form a Frensel lens, sometimes it is very thick, even thicker than a wavelength and allows to make durable horn with very thick metal around it. I want to know what is that material, it looks like there are many small pores in it, very lightweight, different in color, white, gray/yellow, black. I guess with good charact
A horn antenna is an extension of a rectangular waveguide. To feed the waveguide from a coaxial line you need a transition. Any good connector can be used, SMAs are good om DC to ~18 GHz. \Designing a waveguide-to-coaxial transition is a complex task. This is why empirical designs are used, and a careful adjustment is needed. All that explains why
A horn is a expanding waveguide - actually something of a controlled way of matching the impedance of the starting waveguide to that of free space. At some stage, the wavguide needs a transition of some sort to deliver or accept power, usually into TEM coaxial. The waveguide will have an antenna structure in it. The most common, well-known, is the
Hi all. a basic quastion: if i have a horn antenna with the Gain 10 dB, the 3 dB beamwidth is 51 degree. i want to radiate for example a teflon plate. What is the area radiated by the horn antenna if i am in Far field? Thank you all.
hi. i want to design a conical horn with variable polarization characteristic. changing in polarization taken with a motor that rotate a plane that taked place incide horn please help me . thank you You do not define what polarization you need. The feed waveguide defines the polarization.