Low Profile Microsrip Antenna with Broadside Radiation Patterns and Low Cross Polarizations

Abstract

A low profile microstrip antenna with adjustable bandwidth around 3 GHz is proposed. The compact antenna consists of a square patch with a square aperture to tune the resonance center frequency. The input impedance bandwidth is about 2.67% with stable gain around 3.2 dBi. Besides, the 3-dB beam width is about 100°. Both the side-fed and bottom-fed modes are analyzed. According to the simulation, good broadside radiation patterns with low cross polarizations are observed in the two principal planes. The detailed design considerations are described and discussed while the surface current distribution and radiation characteristics are analyzed. This design is suitable for mobile wireless communication.

A Simulated Model of a Triple Band Patch Antenna Proposed for Vital Signs Monitoring Equipment

“…Antennas are a very crucial part of the wireless system. They are favored due to their small dimensions and support for multiple resonance frequencies, lightweight [14], high efficiency [15], low profile [16], and simple manufacturing [16,17].…”

Design of A Patch Antenna with Three Bands for Vital Signs Monitoring Devices

“…Wireless systems cannot function without antennas. The patch antenna (which is the subject of this paper) is known for its compact size, support for multiple resonant frequencies [17], lightweight [12][13][14], low profile [13,15,16], simple manufacture, [14,[16][17][18], low cost [13,14,18,19], ease of mass produce, ease of install, adaptability to horizontal and non-horizontal floors [13,14] of small size and thickness, capability of integrating discrete elements [14] and scalable accessibility [19]. Microstrip patch antennas are essential in the field of wireless communication networks today.…”