.png){kind=icon}
.png){kind=icon}
Return
Efficient Modeling and Analysis Approach for Reflectarray Antenna With Delay Lines Based on Array Scattering Matrix Representation
.png){kind=icon}
PRE
AI
DOI：10.1109/tap.2026.3686107.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
In this article, reflectarray antennas with delay lines are modeled and analyzed based on the array scattering matrix representation. An <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$N$ </tex-math></inline-formula>-element reflectarray antenna is discussed in two ways. On the one hand, it can be regarded as an <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$N$ </tex-math></inline-formula>-element phased array antenna under near-field incident waves from the feed antenna, an (<inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$N+1$ </tex-math></inline-formula>)-port microwave network described by an (<inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$N+1$ </tex-math></inline-formula>) <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\times $ </tex-math></inline-formula> (<inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$N+1$ </tex-math></inline-formula>) scattering matrix can be used to analyze the reflectarray once the incident waves are well modeled and investigated. On the other hand, the reflectarray antenna system can also be equivalent to an extended (<inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$N+2$ </tex-math></inline-formula>) <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\times $ </tex-math></inline-formula> (<inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$N+2$ </tex-math></inline-formula>) scattering matrix where the feed antenna and reflectarray elements are analyzed as a whole. Theoretical analysis of both approaches yields the same formulated conclusion, which verifies the correctness of the equivalent models. The formulas can be used to rapidly and accurately predict reflectarray antenna total fields in the near- and far-field zones. The proposed method has been well validated by full-wave computations of both periodic and irregular reflectarray antennas, and it is suitable for reflectarray elements with delay lines.
Keywords:
Antenna array analysis
equivalent microwave network
phased array scattering
reflectarray modeling
scattering matrix representation
total fields
Journal
IF:
5.8
Papers:
502
Citations:
6.8W