Dual-Frequency Planar Inverted F-L-Antenna (PIFLA) for WLAN and Short Range Communication Systems

Abstract

The design and analysis is presented of a low profile and dualfrequency inverted L-F antenna for WLAN and short range wireless communications, providing a compromise between size reduction and attainable bandwidth. The optimum (minimized) volume of 30 30 8 mm of the proposed antenna gives 8% bandwidth at lower resonant mode of 2400 MHz, while at the higher resonant mode of 5500 MHz a bandwidth of 12.2% is obtained. Both the simulated and measured characteristics of the proposed antenna are shown.

Compact Metallic RFID Tag Antennas With a Loop-Fed Method

“…The coaxial probe can be put at a proper location of one of the two patches to feed this structure [14], [15]. Then this patch is regarded as the primary patch.…”

A novel miniature multi-frequency broadband patch antenna for WLAN applications

“…Various techniques have been used to obtain compact antennas with multiband and broadband characteristics. Some of these techniques are the use of slots [2]- [7], capacitive plates [6], trapezoidal feed plates [7], cavity grounds [8], spiraling [9], shorting walls [10], etc. The Genetic algorithm optimization (GAO) has also been proposed as a powerful optimization technique for designing patch antennas for WLAN applications in [11]- [14].…”

Design of a planar inverted F-L antenna (PIFLA) for lower-band UWB applications

“…Modified PIFA designs include T-slot geometries [3], the introduction of parasitic elements, such as the inverted L [4,5], modified ground planes [6,7] and modifications to the feeding and shorting plates [8,9]. The design adopted here is a miniaturized 'FL' antenna, or PIFLA [10]. A novel feeding structure is introduced to achieve a good impedance bandwidth for the design frequency range, which is the lower sub-band (3100MHz-4800MHz) of the UWB spectrum [11].…”