Questions tagged [antenna-array]
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How can you simulate an antenna array with a resistor in power splitter
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 ...
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RX only radar phased array with multiple targets
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 ...
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Simultaneous measurement of phased array elements
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 ...
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Phasing of circular-polarized antennas array
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 ...
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(Conceptual)Antenna Array as a Problem, Negative effect, What do engineers do when arrays are created unintentionally
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 ...
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How to calculate the received power in the case of multiple transmit antennas?
I want to calculate the received power of an antenna in the case of multiple transmit antennas. For simplicity, assume there are only two transmit antennas and the antenna configuration is shown in ...
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Patch Antenna lower Gain with bigger ground
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 ...
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Can radio waves be focused to a point using a phased array?
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:
...
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Does antenna arraying for deep space communications affect the CMB contribution?
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 ...
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How can I connect a CHW1010-ANT1-1.0-ND to an nrf5340 development board?
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 (...
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How to find the phase values for the desired steering angle?
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 ...
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Do solid state phased arrays need isolated power supplies?
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 ...
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What is the behaviour of this antenna array?
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 ...
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Gain of a signal passed through a N element phased array?
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) ...
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Phase Differences and Wave Equation in ULA Antennas with Far-Field Assumption
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 ...