Related Papers
Electrically small antennas: The art of miniaturization
Abstract— We are living in the technological era, were we preferred to have the portable devices rather than unmovable devices. We are isolating our self rom the wires and we are becoming the habitual of wireless world what makes the device portable? I guess physical dimensions (mechanical) of that particular device, but along with this the electrical dimension is of the device is also of great importance. Reducing the physical dimension of the antenna would result in the small antenna but not electrically small antenna. We have different definition for the electrically small antenna but the one which is most appropriate is, where k is the wave number and is equal to and a is the radius of the imaginary sphere circ*mscribing the maximum dimension of the antenna. As the present day electronic devices progress to diminish in size, technocrats have become increasingly concentrated on electrically small antenna (ESA) designs to reduce the size of the antenna in the overall electronics system. Researchers in many fields, including RF and Microwave, biomedical technology and national intelligence, can benefit from electrically small antennas as long as the performance of the designed ESA meets the system requirement. Keywords— electrically small antenna, microstrip patch antenna
Automatika ‒ Journal for Control, Measurement, Electronics, Computing and Communications
Small Antennas: Miniaturization Techniques and Applications
2012 •
Juraj Bartolic
Electrically Small Antenna Design for Low Frequency Systems
Hans Schantz
There exist a wide variety of commercial RF devices ranging across the spectrum from the Low Frequency band (e.g. 125 kHz) to mm-wave (e.g. 60 GHz). " High " frequencies (which in this context mean VHF, UHF, microwaves and beyond) are well suited for data communications at high bandwidths. Where the emphasis is on signals penetration and propagation in challenging, reflective environments, however, low frequencies have substantial advantages including 1) superior penetration depth, 2) enhanced diffraction around environmental clutter including doorways and corners, 3) less vulnerability to multipath confusion, 4) long range of operation, typically 60-100 m, and 5) low probability of intercept (LPI). Low frequency systems, such as Near-Field Electromagnetic Ranging (NFER), that exploit near-field behavior to deduce location require compact antennas that are necessarily much smaller than a wavelength. Q-Track's current transmitter design uses two orthogonally-oriented ma...
IntechOpen eBooks
Antennas for Space Applications: A Review
2020 •
Erdem Yazgan
Small Antennas Design for 2.4 GHz Applications
Ibrahim Nassar
In many wireless devices, antennas occupy the majority of the overall size. As compact device sizes become a greater focus in industry, the demand for small antennas escalates. In this thesis, detailed investigations on the design of a planar meandered line antenna with truncated ground plane and 3D dipole antenna at 2.4 GHz (ISM band) are presented. The primary goal of this research is to develop small, low coast, and low profile antennas for wireless sensor applications. The planar meandered line antenna was designed based on a study of different miniaturization techniques and a study of the ground plane effect. The study of the ground plane effect proved that it has a pivotal role on balancing the antenna current. The study of the miniaturization process proved that it affects directly the gain, bandwidth, and efficiency. The antenna efficiency and gain were improved using the truncated ground plane. This antenna has a measured gain of -0.86 dBi and measured efficiency of 49.7%, making it one of the efficient and high gain small antennas. The 3D dipole antenna was designed using a novel method for efficiently exploiting the available volume. This method consists of fabricating the dipole on a cube configuration with opening up the internal volume for other uses. This antenna was tested, and it was found that this antenna has good radiation characteristics according to its occupied volume. Ka of this antenna is 0.55, its measured gain is 1.69 dBi with 64.2% measured efficiency. Therefore, this design is very promising in low-power sensing applications. A Wheeler Cap was designed for measuring the efficiency and the 3- antenna method was used for measuring the designed antennas gain.
2010 - MILCOM 2010 MILITARY COMMUNICATIONS CONFERENCE
Enhancing small satellite communication through effective antenna system design
2010 •
Paul Muri
Basic Antennas_ Understanding Practical Antennas and Design_ Joel R Hallas_ 2009
Jimmy R Winata
Multi-functional miniaturized slot antenna system for small satellites
2011 •
jose gregorio padilla
Electro-magnetic Modelling and Optimization of Antennas on Small Platforms
2015 •
Sanaa Salama
Small antenna design for 2.4 GHz applications
Ibrahim Nassar
