Комментарии:
Very nicely explained...... can u tell how do impedance matching works using quarter wave transformer ?? and there are other ways to increase BW as well.... :)
Ответитьnice lecture
Ответитьvisit my channel to watch cst microwave studio tutorials. One of them is about design of a single band patch antenna in CST microwave studio.
ОтветитьThank you very much for this! I couldn't understand much before watching your lecture. There's just one thing making me wonder: according to Carver and Mink in Microstrip Antenna Technology, the input impedance of a rectangular microstrip antenna with no advance on the feedpoint should be of 120 ohms, not 400 as it is said in the video. I am just starting to understand anything about microstrip antennas, so I don't know who's right here.
ОтветитьThank you for this video on analysis of patch antenna. Could you please tell me when the same patch antenna is modified to have any fractal shape at its outer edge(may be square cut), how the analysis may be done? Is there empirical formulae for the planar fractal antenna design and analysis?
ОтветитьIt was mentioned that there was a high input impedance to the patch antenna so there would be quite a bit of reflection. Would you put a matching network between the transmission line and the antenna?
Ответить@SeriousTyro You can put a matching network in there if you would like. Another method is to use a quarter-wavelength transmission line.
Ответить@SeriousTyro The txline section of the antenna theory site has this described on the transmission5.php page
ОтветитьTHIS IS A VERY USEFUL SERIES, THANKS FOR THE HELP.
ОтветитьSir, Take a bow ! I guess no book explains as simple as you did. just wonderful...:) Especially the point of feeding microstrip(@ 7,00 min)..out of the world. I would definitely like to connect with you.
ОтветитьThis is unbelievable! i have cracked my head reading useless books to understand patch antenna.I must confess that you have put me out of my misery.i tried designing one using CST Microwave studio but i did'nt understand the concepts,now i am going back to the lab.I like the way you explained the fringing effect and how it gives rise to the radiation in the patch.you killed it man!
Ответитьhow can I find the input impedance of the antenna and the microstrip transmission line?
ОтветитьIf the tx line is short (less than a tenth of a wavelength), then the antenna measured at the end of the tx line is about the same as the antenna. If the microstrip line is long, then you need to factor it in. It rotates the impedance around the Smith Chart. The only shortcut is if you have a 50 Ohm antenna and a 50 Ohm tx line, then the length of the line doesnt matter & the input impedance remains 50 Ohms. The equations are in the tx line tutorial section of the antenna website.
Ответитьexcellent explanation, kudos.
Ответитьhello pete and friends. what is the matterials to built small patch antenna . can you help me
ОтветитьExcellent job!
ОтветитьThere is the theory of Reciprocity...what is on my mind is what if instead I have an incoming EM wave I would think that the voltage signs would be opposite on the patch given the same feed? Also, instead replace the t-line feed with a probe feed, what does the E-field or fringing field or voltage potential look like then? Moreover, if I increase the distance of the GND away from the patch because of multiple layers do I essentially reduce the fringing fields? If so, what is the consequence of this?
ОтветитьGreat video - love to learn these rules of thumb and real world figures...
ОтветитьMy grandpa is the one that designed the micro-strip antenna, Robert Munson, he goes by Bob though.
Ответитьdo you have video related to microstrip filter analysis and design??
Ответитьexpln very well but accent kill me
ОтветитьThankyou so much.And make more videos related to electronics concepts please!
ОтветитьCan we not feed the antenna along the L side and not the W side. What will happen then?
Ответитьwhat will be the main difference if I design it in a single sided pcb-both patch and ground on the same side?
ОтветитьHello :) very nice and useful video. I am actually looking for resources to understand aperture coupled patch antennas, do you have any advices?
ОтветитьNobody has explained patch antenna so crisply in the internet. Thanks sir for teaching what's required.
Ответитьbrilliantly insightful, especially the gain of patch antenna, kudos to you !
ОтветитьGreat video, I no longer wonder how patch antenna work ;) Cheers
ОтветитьWhat is mean by filagate
Ответитьare you drunk . i can't understand your words . please be clear
ОтветитьYou're the man Pete
Ответитьif (in air) L= lambda/2, then (according to the picture) W > lambda/2....then why do you take the gain of "short dipole", if it's longer than half wave dipole, and must add gain of 2-2.15 db. am i wrong?
ОтветитьWHAT part does the dielectric under the patch play? Is the 1/2 wavelength of the patch a
half Lambda under the patch (in the dielectric), or in air over the patch?
Good explanation, thank you. I assume the dB's should read dBi or did I miss something?
ОтветитьThank you, very nicely explained.
ОтветитьYou deserve a gold medal 🥇 for this video! On behalf of all Ghz rf engineers thank you!
Ответитьhow to calculate width of the input transmission line
Ответитьso what components do I need ot build a mircostrip anntenna; as I thought an alterantive wave passed thrugh a cold of wire is what makes an antenna.
But thats justa magnetic wave; but is there a way to create a crystal atenna?
thx for such a powerful tutorial
ОтветитьI wonder whether this guy knows how good and talented he is at explaining complex stuff. I was shocked that I understood half of it...and I have no formal RF antenna training. Just a baseband analog and digital guy. Bravo for such an excellent tutorial !!!
ОтветитьExcellent explanation. Thank you very much.
ОтветитьI wish I could see your video before my last interviews!
Ответитьthanks for your bravo explanation. I have no knowledge about antenna, but you make it simple and easy to understand.
ОтветитьExcellent and useful video
Ответитьis the polarization direction useful?
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