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You need to know more than simply antenna gain to accurately evaluate the performance of antennas. You should know everything about their radiation patterns. Essentially, the gain of an antenna measures the intensity of the beam it produces. Similar to a flashlight, the more focused the beam, the greater its range and the need for accuracy in orientation.
Radiation pattern vs gain
Antenna gain has a straightforward numerical value and is expressed as dBi. The pattern in which an antenna emits radio frequency energy is known as its radiation pattern. The radiation from an antenna depicts how the antenna performs for a specific application in terms of radiation field strength, directivity, gain, phase, and radiation efficiency as a function of radial distance and angular position from the antenna. An antenna radiation pattern is the mathematical graphical representation of the radiation energy distribution into all directions of space and hence is three-dimensional, expressed in the spherical coordinate system.
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Denne historien er fra April 2024-utgaven av Electronics For You.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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HIGH/LOW-VOLTAGE CUT OUT With Built-in Delay
Most electronic and electric devices require a voltage within certain limits. If the voltage applied is higher than normal, the current drawn by the circuit may exceed the rated value and damage the circuit.
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AUTOMATIC WASH BASIN TAP With LED Light
When waking up at night to use the wash basin, you may struggle to find the switchboard to turn on the light before opening the wash basin tap to wash your hands.
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“Unfortunately, MANY STARTUPS Are Not Aware OF THE POLICIES"
Should startups funnel their funding and investments into their existing bank accounts, or is it wiser to open a separate one? What are the other mistakes that startups make in India? Sharath Shyamasunder, Founder and CEO of The Startup Zone, with extensive experience working with over 5000 startups, discusses these issues with EFY's Mukul Yudhveer Singh.
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Why Industries Are Shifting FROM SILICON TO SILICON CARBIDE For Power Electronics
Silicon carbide (SiC) revolutionises power semiconductors, cutting switching losses by up to 90% and enhancing efficiency and compactness. As demand for electric mobility and sustainable energy grows, SiC drives a greener, more efficient future.
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"The Biggest Benefit For Fleet Owners Is The Saved Cost Per Month"
As the commercial electric vehicle (CEV) space heats up in India, doors for new business opportunities are also opening up. Log9's CEO Dr Akshay Singhal had a chat with EFY's Mukul Yudhveer Singh on why they launched 'Amphion' to tap on such a major opportunity
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"All Our DELIVERY PARTNERS Are Independent Micro-Entrepreneurs, Constituting A Workforce Of 20,000 GIG WORKERS"
Zypp Electric handles 5 million monthly deliveries with its fleet of 20,000 electric vehicles, supporting the livelihoods of 20,000 driver partners. The company collaborates with NGOS and CSR organisations to recruit more women as delivery partners. In a conversation with Nitisha from EFY, Co-Founder & CEO Akash Gupta emphasised Zypp's commitment to social change by empowering driver partners, particularly women and individuals with disabilities. Here are key excerpts from the conversation
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HYBRID SUPERCAPACITORS: Emerging As A Better Choice For Residential And Commercial Use
Hybrid supercapacitors and solar energy are reshaping energy storage, from India's solar boom to maintenance-free solutions.
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The 'Big Little' Problem In HARNESSING AI To Revolutionise Workplaces
As AI advances, exemplified by ChatGPT-4, job roles are evolving. Yet, there is significant potential to enhance productivity by synergising human intelligence with Al. Concurrently, efforts to resolve chiprelated challenges persist, driving the continuous improvement of electronics for a promising future.
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What To Look For In ENERGY STORAGE SYSTEMS
When selecting a technology for an energy storage project, it's essential to consider several key factors
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GREEN HYDROGEN: Sustainable Fuel For A Carbon-Free Future
Green hydrogen is key to the energy transition. While currently expensive, it could become cost-competitive within a decade with economies of scale, technological advancements, and policy support. India's abundant renewable energy offers a significant advantage.