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Questions tagged [antenna-array]

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71 questions
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I am simulating a 2 by 2 patch antenna array with Wilkson power splitter. This power splitter require 100 ohm resistor. I use 0603 for this SMD resistor. Here is my EM simulation s-paramter plot in ...
kile's user avatar
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1 vote
2 answers
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I saw some FMCW automotive radar modules with phased array antenna only on the RX portion. I'm wondering how such antenna differentiates multiple targets. Let's say there are 2 targets illuminated by ...
zakrent's user avatar
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I’m studying on how to characterize each antenna working simultaneously in a phased array. I found a paper Link added. Looking at Fig.1, as far as I understand, it does four measurements, each for ...
Xant's user avatar
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If we take two orthogonal dipoles and feed them with 90° shift, we get a cirular polarized antenna. But if we want to make a phased array of such antennas, how do we control their phases for beam ...
ololo ololo's user avatar
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1 answer
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I was in my first lecture of antenna array where I was studying the basic infinitesimal antennas at lambda/4 distance, one of the slide it had was And it made me think, what if we have a broadcasting ...
Rajat's user avatar
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I am designing a circular patch antenna. The design seems good, achieving <-25 dB S11 and 9dB gain. I am trying to reach even higher gain. For different reasons I need to extend the ground from ...
diegobrsrk's user avatar
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1 answer
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I've seen many examples of ultrasonic phased arrays being used with non-linear phase relationship between elements to concentrate all the power at a specific point, for example here:              ...
Christian's user avatar
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5 votes
2 answers
471 views

My question pertains to the reduction in SNR achieved by arraying parabolic antennas in deep space communications. My engineering education is a bit out of date, so my thanks for your patience. I ...
Larry Gilman's user avatar
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I would like to connect a CHW1010-ANT1-1.0-ND to an nrf5340 development board to implement direction finding. This is in the datasheet of the CHW1010-ANT1-1.0 The nrf5340 has a Murata MM8130-2600RA2 (...
beestree's user avatar
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1 answer
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The picture attached is self-explanatory. The antenna system system 24 antenna elements with inter antenna element spacing of wavelength/2. There are two types of arrangements. The first one is ...
MGM's user avatar
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1 answer
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Non-isolated DC/DC supplies could have higher power density but it seems that high power solid state phased arrays utilize mostly isolated DC/DC converters to power each of their amplifiers. Why are ...
MaxwellEE's user avatar
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1 answer
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I have a subarray-based antenna system as shown here: The four subarrays are arranged vertically. In each subarray there are six antenna elements. Only the bottom three in each subarray have a common ...
MGM's user avatar
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Assuming a isotropic phased array of N elements, the gain would be 10*log10(N) dB which is provided in theory. However, when same signal is passed through all the N elements, the gain is 20 * log10(N) ...
Pacific's user avatar
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I am analyzing a signal received by two antennas, where the second antenna is positioned farther than the first in the direction of wave propagation. I am encountering some confusion when it comes to ...
Naetmul's user avatar
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I have an 2D array of 64 antenna element. Lets say each antenna is connected to one RF chain. with this array total 64 parallel data streams can be transmitted with some pre-processing. When the load ...
MGM's user avatar
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