Design of Non-Uniform Antenna Arrays for Improved Near-Field MultiFocusing

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

On the Optimal Design of Non-uniform Circular Antenna Arrays

Abstract In this paper, the design of non-uniform circular antenna arrays of isotropic radiators with optimum side lobe level reduction is investigated. Two global evolutionary optimization methods (namely; the biogeography based optimization and the self-adaptive differential evolution) are used to determine an optimum set of weights and positions that provide a radiation pattern with optimum ...

متن کامل

Designing light-emitting diode arrays for uniform near-field irradiance.

We analyze the first-order design of light sources consisting of multiple light-emitting diodes (LEDs) to uniformly illuminate a near target plane by considering each single LED as an imperfect Lambertian emitter. Simple approximate equations and formulas are derived for the optimum LED-to-LED spacing, i.e., the optimum packaging density, of several array configurations to achieve uniform near-...

متن کامل

Design of Non-uniform Circular Antenna Arrays Using Firefly Algorithm for Side Lobe Level Reduction

A design problem of non-uniform circular antenna arrays for maximum reduction of both the side lobe level (SLL) and first null beam width (FNBW) is dealt with. This problem is modeled as a simple optimization problem. The method of Firefly algorithm (FFA) is used to determine an optimal set of current excitation weights and antenna inter-element separations that provide radiation pattern with m...

متن کامل

Near Field On Chip RFID Antenna Design

This chapter deals with the designing strategy and process integration for a small On-ChipAntenna (OCA) with a small Radio Frequency Identification (RFID) tag on a chip-area 0.64 x 0.64 mm at 2.45 GHz for communication in near field. On the other hand, communication between Reader device and set of OCA-Tag is based on inductive coupling. Embedded antenna is an important step down into the route...

متن کامل

Sparse Cantor Ring Antenna Arrays with Non- Uniform Element Spacing

This research project is based on previous work done by Dwight L. Jaggard and Aaron D. Jaggard on fractal ring arrays. We utilize fractals in the fabrication of a class of Cantor ring arrays. Fractal descriptors such as dimension, stage of growth, and lacunarity are applied in designing and characterizing these Cantor rings. Using the continuous arrays developed by Jaggard and Jaggard as a poin...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Sensors

سال: 2019

ISSN: 1424-8220

DOI: 10.3390/s19030645