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50 Threads found on Antenna Basics
Hi i am new to hfss, can any one help me , how to design yagi antenna 2.4Ghz ? any one have pdf for calculations / design procedure please
I think nesan isn't referring to the copper cladding, but to the FR4 substrate properties. In this case I don't think FR4 is a good choice to be used in an antenna design, specially at high frequency. There are at least two resons: 1. The dielectric constant can vary from batch to batch, so the repeatability could by poor. In general the standard
antenna Impedance is same as any other impedance means it relates the current and voltage of antenna. Have a look at the above link and then feel free to ask what is further question ?
I like your approach of asking about good references. There are a number of good references on the subject. Kraus, Silver, Jasik (now Volakis) and the like. Many people like Balanis as a starting point. They all have discussions of the various antenna parameters. Surprisingly, Introduction to Airborne Radar, Stimson is another good reference
Hi everyone, . I am studying at Morocco, I would like to studying more about antenna in this field, so if any one in this area, the same me, could you give me informations and documents only about antenna . Thank you so much
Halo I have started my research in the feild of microwaves peculiarly in the feild of composite right left handed metamaterials. I am a new user to HFSS software. Can any one help with the basics or recommend me the material to get started.
hi, i never heard about antenna power available before! are you referring to antenna efficiency and gain? if yes, refer to the link below.
total efficiency = radiation efficiency X impedance mismatch loss of the antenna refer to article below - - - Updated - - - you have simulated radiation efficiency whereas the paper has total efficiency. CST will give you both total and radiation efficiency.
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
good explanation is here: I looking for good LTE 4G external MIMO antenna with high gain (above 10dBi)...?! If possible in europe!
If you want to learn to use HFSS, start from the basics and do not jump steps. If you are in a rush, search for a small program called 'HFSS antenna Design Kit'. It should help you generate HFSS models within seconds. (I checked and it has PIFA models as well).
How to calculate the short plate width and height ? Can anyone pls post the required formula and step by step design procedure for PIFA.
Hello I have no basics of antenna but i chose the course of antenna .Now I am working on a Project. I have to design an antenna" Multiband PIFA antenna with ground plane capacitive resonator". I have no idea how to start. Because i am so poor at the basics. I also want to know How to use (...)
hi, my project is ENHANCING THE GAIN OF HELICAL antenna BY SHAPING VARIOUS GROUND CONDUCTORS. depending on cstmws we should have to do this project, so please help me by sending necessary materials regarding my project such as basics of cstmws, how to feed&simulate an antenna using cst, how the radiationpattern and gain can be (...)
When the dimensions of the antenna are constant then the gain is reduced and the impedance changes and thus the resonance frequency. Other properties as the bandwidth or the radiation pattern should also change. Generally you would use a low loss substrate because with a lossy substrate the gain is reduced and perhaps other antennas can than provi
theta will be 2*pi indicating 360 degree rotation on 1 plane. This is required not only to find the gain / directivity on the forward direction of the antenna but also to find the FBR in case of a patch antenna. phi will be pi (180 degrees) indicating the forward direction only as the FBR is already computed in theta which will be the same. Theta
i want to design 2*2 microstrip patch antenna array with micrrostrip line feeding network but on an important factor is to find input impedance of each patch, so how can i find input impedance?
Maybe this can help : The Physics of Resonance How antennas Work Also Violet give good answer for this :
Hello, You can have PSK and ASK at the RF modulation level (backscatter). As the tag changes the load seen by the tag antenna, this may result in both change of phase and amplitude of the backscatter coefficient. Therefore readers should be able to demodulate both PSK and ASK backscatter. As you may know the standard allows subcarrier modulatio
hi all can you tell me any tutorial based on understanding use of smith chart in microstrip antenna design I am not able to understand the smith charts given in various technical papers based on microstrip antenna what is plotted on smith chart what must be optimised value in microstrip antennas regards kartik
I also had problem installing it, may you verify it please?You can find the basics of Gregorian antennas in the attached document (Multiple Reflector antennas). After you know the basics, you can use ICARA software to analyse the performance of the different feeds.
hi all I want to learn IE3D software for microstrip antenna design and simulations I have gone through basics of MSAs can u provide me a small project or some manual with steps so that i can learn this software regards dhruva
antennas by John Kraus is also an excellent book. He provides the theory on many types of antennas and has many practical design examples.
I do not know where you took the basics of antennas. There is no "radius"; the primary reflector is parabolic, the secondary is hyperbolic in shape. At 100 GHz, the accuracy of reflector geometric shape should be better than 0.375 mm, one eighth of wavelength, 3 mm. Find a good book on microwave antennas for a reliable information.
Hi , check following links antenna (radio) - Wikipedia, the free encyclopedia antenna resonance and bandwidth ::
Just search the net for "antenna Near Field" and you will get thousands of answers. Have to think to the antenna coupling, the same situation when you have two coupled LC resonators (some RF basics), because an antenna basically is an LC resonant circuit. More or less cou
hello everyone, I have doubts in basics of antennas 1)why do we take dipole that too half wave dipole antenna as the reference antenna? 2)what is the reason for taking the characteristic impedance as 50Ω?
please some one help me by giving basics tutorial for desinging mictristrip patch antenna using transmission line please help me.
Dear delegates, Can you please send me some file related to antenna radiation pattern design and the fundamentals involved. I am an undergraduate student doing a student level satellite project and need your help. Kindly guide
Hi, try software
I am beginner in CST Studio I want to know how the ports are placed ar required position like in dipole antenna and which port shoul be used for this purpose.And does cst have other predefined sources hertzian dipole, linear like hfss. thanks waseem
i need a good website related to antennas that tells me from basics or any related link
does any one have code of matlab so i can get the results of the gain in differnt wave lenghts and the input impedance ...... i have got the code to get the graphs of the pattern radiation and its working hope one of the friends can send me or at least give me some basics thanks
hi, kindly if any knows the formula used for conical waveguide used in conical horn antenna. please inform me if rectangular waveguide's formula is applicable to it???? also please mention the reference from where you are coding the formula. thanks.
This is the basic antenna, read some materials regarding antenna basics. For more details refer where u'll get some info about dipole,yagi,filters,attenuators etc.......
Hi I am just trying to learn CST MWS 2006. I have modelled a horn antenna which is already realised. The antenna resonates at 15GHz. I have assigned a waveguideport to the antenna. But I am finding almost entire signal being reflected. I request you to kindly try to locate the problem. I feel I have not assigned the port properly
these book are available in under givin link hello fellow members I need to strart mini project on microstrip antennas so kindly help me frist of all undrstand the what is basic fuctinal characterstics of microstrip antennas ?
for basics of microstrip antenna u can refer to microstrip antennna HB by i.j.bahl...etc compact n broadband MS by kin lu wong..
Hi all I need an e-book which will guide me about antenna basics. THX AH
1. Find the freq. of your application. Example for devices of bluetooh the frequancy of operating is 2.45 GHz 2. Find the type of material(PCB) that you wanted to use like Duriod or other. Go to RT Duriod web site and get all the parameter u need in calculation like relative permittivity εr and relative permiebilty ?r. 3. Choose a model(
hello, phase center simulation with cst mws is easy. in the properties window of radiation pattern there is a tap where you can activate to calculate phase center. more info can be found in the cst mws help docs as for measurements, i think that a good basic book about antennas mentions some details about this. there are more specialised book
The simplest antenna is just a pice of wire. To learn about how long this wire should be goto: Regards, IanP
Hi Maverickmax just look at PL
Hi abti, you should use an antenna array composed of planar elements in the same plane. Many books on antennas (available in this board) give the basics of arrays and of planar (microstrip) antennas. Regards Z
Hi all, I am basically a guy who does more of antenna simulations and EM theory stuff. I am now looking at learning microwave circuit design as I am currently working on a Masters project and have some spare time. I have resonable aptitude in transistor circuits and have a good idea of the basics of microwave engineering ( transmission l
basics of antenna measurements from orbit (positioner manufacturer)
In the next post are a basics antenna Gain Measurement Best regards, Dienal
anyone is having eBook for basics of RF Communication and antenna. ~niks~
antennas, simulation software, examples etc.