(Nano Telecommunication) Nano Strip Antennas and Microstrip Antennas
Researcher and author: Dr. ( Afshin Rashid)
Note: One of these areas and new applications of nanotechnology are nano-antennas, which are used in various fields such as nanosensors, nano- communication networks, electricity generation and other similar issues and as one of the fields. Nanotechnology Development Day.
Due to the development of technology for manufacturing equipment in nano-dimensions, it is possible to make nano antennas and use them in various applications. Communication between nano-devices is a major challenge related to the development of nano-antennas and related electromagnetic receivers. Reducing the size of a traditional antenna to hundreds of nanometers leads to very high operating frequencies . At THz band frequencies, the very large bandwidth available leads to the loss of a much higher path than the lower frequency bands . The issue of designing and manufacturing antennas that can be used in nanosystems and even introduce new functions to the world of industry has been very important and has become a new topic in the electrical industry and nanotechnology.Because nano-antennas have the ability to absorb a wide angle, their efficiency is maintained to a considerable extent even if the sun is inclined to the surface of the solar panel . The system can also absorb energy radiated from the ground, or ground radiation from the sun's daily radiation to the earth's surface, which occurs at 10 micrometers in length , at frequencies of about 90 terahertz.
The Microstrip Antenna consists of a very thin metal strip that is held in place on a ground plate with a dielectric material. The radiant element and the power lines are placed on the dielectric material by the imaging process. A patch or micro-strip is usually selected as a square, circle or rectangle for ease of analysis and fabrication. Microstrip antennas are increasingly useful because they can be printed directly on the circuit board . Micro-strip antennas are low-cost, low-spec, and easy to build. The microstrip antenna is powered by a microstrip transmission line. The antenna, microtrip transmission line and ground plate are made of high conductivity metal (usually copper). The microstrip antenna must be half the wavelength in the dielectric medium (substrate). The width of the micro-strip antenna controls the input impedance. Larger bandwidth can also increase bandwidth. For a square patch antenna powered by the above method, the input impedance will be about 300 ohms. By increasing the width, the impedance can be reduced. However, to reduce the input impedance to 50 ohms, you often need a very wide microstrip antenna that takes up a lot of valuable space. More width controls the radiation pattern. The bandwidth of the microstrip antenna is very small. Rectangular microstrip antennas are generally narrow. The bandwidth of rectangular microstrip antennas is usually 3%. Second, the microstrip antenna is designed to operate at 100 MHz, but has a resonance of about 96 MHz. This change is due to the marginal fields around the antenna, which makes the microstrip antenna appear longer. Communication between nano-devices is a major challenge related to the development of nano-antennas and related electromagnetic receivers. Reducing the size of a traditional antenna to hundreds of nanometers leads to very high operating frequencies . At THz band frequencies, the very large bandwidth available leads to the loss of a much higher path than the lower frequency bands. Microstrip antennas are low profile antennas. A metal patch mounted on the ground with dielectric material between them, a Forms a micro strip or patch antenna . In fact, there are antennas with very small size that have little radiation. Microstrip Antennas are popular for low-spec applications at frequencies above 100 MHz .
Conclusion :
One of these areas and new applications of nanotechnology are nano-antennas, which are used in various fields such as nanosensors, nano- communication networks, electricity generation and other similar issues and as one of the fields of development day. Nanotechnology is at stake.
Researcher and author: Dr. ( Afshin Rashid)
PhD in Nano-Microelectronics