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41 Threads found on Patch Antenna Inset Feed
Hi everyone, Building a microstrip patch antenna on HFSS. I used a wave port and de-embedded it to start on the beginning of the inset feed of the transmission line. During the solution, the convergence is not happening even though i have 30 passes with DS = 0.01. The results are very big like 5.7e+86 etc.. Any thoughts? (...)
Howdy mates, These are two 2.4 GHz equilateral triangular patch antenna simulated by CST Studio. One has inset feeding, while the other has a coaxial feed. Hope they could be useful for someone. Attached please find the models. Have a good day Rodeoman
hello hope you are well, I am designing patch antenna using inset feed. I want to know the formulas how to find the width and length of feed? how much should be inset distance in patch and inset gap with patch (conductor)? Thanks
I would like to calculate the inset feed dimensions for my patch antenna, Peak Impedance (impedance at edge) is 155.9072 +50.9807j. I rearrange the formula: 121564 with 50 ohms being the one you want, Zin(R). My question is, in the calculation, for the other impedance value Zin(0), should I use 155.9072, or the m
Wat should b d dimentions of tha srr in the ground plane of a uwb microstrip patch antenna so that its results could b enhanced than without any srr in the ground plane. Also where should b the inset feed placed.
Looking your return loss, the question arises about feeding. What feeding you doing, u can start with inset feed or quaterwavelength feed. And, try matching the feed impedance with the edge impedance of patch.
Hi all! I was simulating a simple inset fed patch antenna on Taconic TLC with Dk=3.2 and thickness of 0.79 mm at 2.45 GHz. While finding the inset feed position for optimum impedance match, what I observed was that the resonant frequency changes when I change the inset (...)
can any one send the feed network for the 2X2 microstrip patch antenna with inset feed.plz help me out...:)
plz can some one tell me how to calculate the "width of the inset feed in microstrip patch antenna" having dilectric constant 4.36 ,height of substrate is 1.5mm and frequency is 2.4835ghz...tell me the formula for this
sir how we design inset feed for tooth like slot on patch antenna.if inset feed cross center of patch how we calculate input impedance..
Hi, We designed a microstrip patch antenna using HFSS having the following parameters shown in fig. 89522 In this fig, when the inset distance is varied slightly ie even by 0.001mm also, the impedance decreases drastically. This could be pretty dangerous when manufacturing the antenna is in question. Is there any soluti
how to insert slots in the rectabgular patch ?wht are the basic required papmeters to locate the location of slots in rectangular patch near the inset feed ..?
Hi How can I use interdigital capacitor for impedance matching in patch antenna.The antenna is feeding by transmission line. what's the best way for impedance maching in patch antenna?I wouldn't like to use inset feed technique.
Even if there is a gap, there should be some coupling. Sure, but the capacitance across the gap is small. Any gap between the feedline and patch will cause heavy mismatch. patch and feed dimension checked? Substrate permittivity checked?
Hi, I am designing a single rectangular patch antenna . the substrate is Fr4 and its dielectric constant is 4.4. I have used inset feed for the antenna. The frequency is 2.4Ghz. I obtained the following results. My resonant frequency(Rf) is 2.399Ghz return loss @ Rf is 40 db There are many (...)
1)hey I designed a rectangular patch antenna of W= 29.34mm, L= 16.328mm, εr= 9.8, h(thickness)= 1.27mm, f0=2.2ghz... Im using a microstrip line feed of 50 ohm. I want to know what is the correct feeding point? how can i determine it? Is there a formula? 2)Wen i go for an array of antenna what should I (...)
Hi, I am designing a single rectangular patch antenna for 2.4Ghz. i am using inset feed. I used the std formulas available in Balanis to cal the length and width of rectangular patch. The length = 30mm, width=38mm, Er=4.4,height of substrate(fr4)=1.6mm. The feed width was 0.5mm. I (...)
Let's assume that the inset gap length used by the questioner means the width of the inset gap, which is the dimension along the same direction as the patch width. One antenna textbook says that the inset gap length commonly is 3 times of the feed-line width. However, if the (...)
So, is there actually no equation in order to design the dimension of the microstrip line?? The width of the microstrip line (Wf in your picture) is given by the line impedance (usually 50 Ohm). The slot width (equal to Wf in your picture) should not be critical. ---------- Post adde
Hi, The dimensions you gave now are quite different from the first patch. I don't understand with respect to which condition "the frequencies shifts about 0.3-0.5 GHz to the origin". Can you clarify? In your case, the gaps necessary for the port 1 (or 2) inset cut the patch where the current is maximum when you feed by (...)
hello everybody, i am supposed to design a rectangular microstrip patch antenna for 2GHz and 2.5GHz with inset feed. The patch length should be the resonating length for 2GHz and the width for 2.5 GHz. When i do it for individual frequency it is ok. but whenever i am using two inset (...)
Hello, I have design the single stacked patch antenna with corner feed on HFSS as shown below. Now i have draw the same structure in ADS. I am not sure how to subtract the two shape to create inset patch in ADS with corner feed because when i use "Union Minus Intersection" then it is (...)
I have designed antenna for 2.45ghz but it is resonating for three different frequencies i.e it is behaving as multi band antenna but i have designed for single frequency....please help me i have used inset microstrip feed line method for feeding it....after tuning s11 is coming around 2.45ghz
The inset is to match the antenna to the feed, different points of the patch have different impedances, depending on the mode. I suggest you to consult microstrip antenna design handbook by Garg: or any other microstrip antenna handbooks.
Hi, I am working on developing a stretchable antenna. Currently i tried simluating a 2.5 GHz inset fed patch antenna on the elastomeric substrate but i see that the reflections increase when it is stretched more than 10%. This maybe because we disturb the inset position while stretching. I thought like a (...)
can anybody plz help about what are the steps to make a slot on patch antenna using ie3d tool commands plz send me the design step using ie3d command
which type of patch antenna u r planning to design?
Well you can choose a microstrip inset feed patch. The length of the patch is given by L = c/(2*freq*sqrt(dielectric-constant)) and take width 1.2 times the Length (This is not a rule, I am saying so that you can begin your analysis) Then feed the patch in the center
i am designing a patch antenna i have calculated its width and its length also have the inset position i have to feed the patch by a mircostrip line of 50 ohms how can determine the width of the microstrip line are there any rules that i need to fallow ?
Does anyone have an example (preferably HFSS) of a Microstrip patch antenna with Shorting Pin at 2.4 GHz??? Any help will be greatly appreciated.
can you please assist me by providing some already designed circular patch antenna which uses inset feed.. and design procedure for epsr 4.5....
I was trying to model circular patch antenna (and its variatios) return loss,impedance and vswr characteristics with FEKO. I fed it with inset feed method and used the formula to compute the impedance match of 50ohms on antenna. The simulation worked perfectly. But the dB(S11) parameter seems to be shifted (...)
Hi. i want to design Microstrip patch antenna 1.8Ghz 1.9GHz 2.1Ghz to caltulate the Wave port W and L.? and how to set wave port ? i do not now how to use wave to define the wave port. and how to calculate the inset-feed Y0 and microstrip feed line W and L. i did some simulation bu i (...)
Hi. i want to design Microstrip patch antenna 1.8Ghz 1.9GHz 2.1Ghz to caltulate the Wave port W and L.? and how to set wave port ? and how to calculate the inset-feed Y0 and microstrip feed line W and L. i did some simulation bu i can not get right result.please help me it is very (...)
Dear Friends, Due to some difficulties, I changed my design procedure to inset feed. I am designing an Active antenna working about 2.5 to 3.5 GHz. For my frequency, I evaluate my patch dimensions, but when I put the feed line and connect it to the patch, fr changes! I was wondering (...)
patch antennas are typically narrow band devices. Increasing the thickness and decreasing the dielectric constant can sometimes help.
Hi there, I'm now doing analysis rectangular patch antenna. And using microstrip line feed for feeding. There are 3 types for this feeding. 1) nonradiating edge (end-edge) 2) radiating edge with inset-fed 3) radiating edge with quater-wave transformer May anyone tell me that is it (...)
I want to feed rectangular patch antenna using a microstrip feedline (50 ohm) What is the approach taken ? Are these the 2ways of using a microstrip feedline - 1. inset feed ==> we find the location on the patch such that its impedance at that point is (...)
Hello, do u have any sources that explain modelling patch antenna with line feed using CST? I have made a rectangular patch simulation but could not be succesfull.I was not able to operate my antenna at 2.45 Ghz.
Hi abti, What type of planar antenna are you looking at ? If it is a microstrip patch antenna with microstrip feed on the same substrate, then you should look at varying the inset position and adjusting for lowest possible S11. Similar thing holds for a probe fed patch (...)
Please take a closer look at Balanis book. There is indeed a formula for you to calculate the depth of inset. Now I am using Ansoft Designer on the same 2.45G inset-feed square patch antenna. The formula is quite good in Designer for the 50-ohm matching. But the problem is its narrow-band (...)