An Efficient Analysis of Large-Scale Periodic Microstrip Antenna Arrays Using the Characteristic Basis Function Method

Abstract

Abstract-This paper presents a novel approach for the efficient solution of large-scale periodic microstrip antenna arrays using the newly introduced characteristic basis functions (CBFs) in conjunction with the method of moments (MoM) based on the conventional RWG basis functions. The CBFs are special types of high-level basis functions by incorporating the physics of the problem, defined over domains that encompass a relatively large number of conventional subdomain basis functions. The advantages of applying the CBF method (CBFM) are illustrated by several representative examples, and the computation time as well as the memory requirements are compared to those of conventional direct computation. It is demonstrated that the use of CBFs can result in significant savings in computation time and memory requirements, with little or no compromise in the accuracy of the solution.

New analysis method for finite periodic structures combining macro basis functions and multipole approaches

“…Other approaches exploit iterative solvers including fast matrix-vector multiplications, based on multipole expansions or on Fast Fourier Transforms. Finally, other methods are based on sub-entire domain basis functions [1]- [3]. They rely on the hypothesis that the fields on a given unit cell in the large finite structure can be accurately described by a linear combination of solutions obtained for very small problems.…”

Effect of Mutual Coupling and Configuration of Concentric Circular Array Antenna on the Signal-to-Interference Performance in Cdma Systems

“…A very popular type of antenna arrays is the circular array (CA) which has several advantages over other schemes such as all-azimuth scan capability (i.e., it can perform 360 • scan around its center) and the beam pattern can be kept invariant. CCAA that contains many concentric circular rings of different radii and number of elements have several advantages including the flexibility in array pattern synthesis and design both in narrowband and broadband beamforming applications [12][13][14][15][16][17][18][19]. CCAA is also favored in direction of arrival (DOA) applications since it provides almost invariant azimuth angle coverage.…”

Radiation Analysis of Large Antenna Array by Using Periodic Equivalence Principle Algorithm

“…The research on large arrays with periodic structure, such as FSS (Frequency selective surface) [1,2] and large antenna array [3,4], has received much attention in recent years. In practical applications, such as the radiation problems of large antenna array, the results of radiation pattern cannot be calculated directly by principle of pattern multiplication.…”