Questions tagged [patch-antenna]
17 questions
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How does selecting a higher permittivity substrate in patch antenna reduce its size?
By selecting a higher permittivity substrate do we reduce the height of the antenna or we reduce the length of the patch antenna? We cannot reduce the length of the antenna as it is dependent on the wavelength.
Mrunal Shinde
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2
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Why are there two different charges on a patch antenna? How are these charge distributions formed?
If we apply an AC signal to a capacitor, we can see only one type of charge on an individual plate. If we apply an AC signal to a patch antenna, there are two different charge distributions on the patch. The charge distribution also varies with the…
Mrunal Shinde
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Why isn't my Teseo-LIV3FL's CEP value within the datasheet specifications?
Context: CEP is defined as the radius of a circle, centered on the mean, whose perimeter is expected to include the landing points of 50% of the rounds (Wikipedia.)
According to the Teseo's datasheet, this module could reach 1.5m CEP with a roof…
Why Would You
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Smartphone Bluetooth Antenna Modification
Is it possible to modify smartphone Bluetooth antenna (2.4 GHz) by redesigning it? I am currently designing a Polyimide microstrip patch antenna with 50 ohms impedance. What steps should I make so that the device won't face heating and what are the…
JayP
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How to create RF source in CST Studio
I have designed a microstrip patch antenna in CST studio and I want to test its efficiency for energy harvesting. Having followed some youtube videos, I understand creating a waveguide port across the microstrip and ground plane is what you would do…
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How to design 4x1 patch array antenna using ads
I have tried to do a power divider but could not find how to calculate width and length. How to pair the antenna and power divider?
cool guy
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GPS antenna not working
We are developing a GPS+LTE project based on the LE910S1-EAG module. We use a GPS LNA NJG1159PHH and an ACAG0301-1575 GPS antenna.
In this module GNSS_LNA_EN is left open and GNSS_ANT_RF_OUT is connected to pin R9 if the GPS LNA.
NJG1159PHH is…
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identifying special type of patch antenna
i have an article shown in the link bellow.
In this article i have a patch antenna which looks like the photos bellow.
f=7GHz W=5mm L=15.5mm H2=1.5mm e_r=3.5 H=6.5mm
We have three weird things in the patch.
1.it got air spacing between the…
gop664
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Proving orthogonality of two antennas intuition
I am reading this article: The Design of Shared Aperture Antennas Consisting
of Differently Sized Elements.
I have there two antennas which, I was told, have orthogonal polarization, but when I try to simulate them separately I see both of them…
rocko445
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How should I go about miniaturization of patch antenna?
I am working on a microstrip patch antenna for 1 GHz resonant frequency. I want the antenna to be ideally less than 6 cm for both length and width. Normally, a 1 GHz microstrip antenna would have 14-15 cm sides.
I have tried shorting wall and…
Lucifer Holmes
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3 answers
Phased Array Antenna simulation coding
I have already coded the phased array antenna radiation pattern for my university project with Matlab. I will probably do this again for my master's thesis (phased array patch antenna).
Is there any difference between coding this in C++ or Matlab？It…
YIL
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0
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1 answer
How to add prepreg material 7628 (fiberglass impregnated with resin) in CST microwave studio for multilayer antenna simulation?
I'm designing an antenna structure that will be embedded with a 4-layer radio circuit. The difficulty I'm facing to simulate the structure is not getting the prepreg 7628 material (fiberglass impregnated with resin) in the CST microwave studio…
MS-Hossen
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Why is the charge distribution of printed dipole antenna different from patch antennas?
Why in planar dipole antenna current is perpendicular to the feed while in patch antenna the current is parallel to the feed line?
Is the direction of current dependent on the input supply terminals? What are the differences between patch antenna…
Prerna
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0
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What is the frequency measurement range of a NanoVNA?
I have tried to measure a fabricated patch antenna which has theoretically multiband ranging from 1 GHz to 8 GHz, but when I tried to measure it through NanoVNA it barely shows the result from 1 GHz to 4.4 GHz. Is there a limit in the NanoVNA or am…
MS-Hossen
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0
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1 answer
Differences between these 2 patch antenna arrays?
BLE5.2 based AOA applications are very popular. There're some devkits for this purpose on the market.
One of them is https://www.insightsip.com/products/bluetooth-smart-modules/isp1907
The other one is…
berker
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