Near-field wireless communication with no battery

Renesas Electronics Corp has developed a near-field wireless communication technology that can transmit data to Bluetooth- and wireless LAN-compatible devices without the use of a battery. The system instead makes use of the electricity generated by environmental radio waves. Since the system does not require a battery, it has the capability of being used to create an ultra-small sensor node that could be used in a variety of applications and send data to a smart phone that is within a distance of one meter. The system could also be used with any Bluetooth-compatible device in range. This is possible because the system reduces the use of power from several tens of milliwatts to several microwatts, which represents a significant decrease in power. The system is equipped with an LC resonant circuit. The circuit allows the system to absorb radio waves through LC resonance. The harvesting occurs at a rate of about 10μW from environmental radio waves. The radio waves can then be used to transmit the signal to mobile devices, allowing them to interpret the device as the sensor node sending “0 ” signals when it is on and “1 ” signals when the device is not transmitting.

- Advertisement -
Loading form…

Industry's Buzz

Anoop Kumar Rai Takes Charge as BEL Director (Marketing)

0
Beyond defence applications, Rai has driven BEL’s diversification into civilian infrastructure Bharat Electronics Limited (BEL) has appointed Anoop Kumar Rai as its Director (Marketing), effective...

BEL Appoints Ambrish Tripathi as Director (Human Resources)

0
Tripathi’s appointment comes as BEL continues to expand its capabilities across defence and strategic technologies Bharat Electronics Limited (BEL) has appointed Ambrish Tripathi as Director...

Suzlon Adds 250 MW Torrent Order, Crosses 1.1 GW in FY27 Orders 

0
Suzlon has secured a 250 MW wind energy order from Torrent Green Energy, taking their cumulative partnership to more than 1.3 GW across three...
Chip Making (representational Image)

India to Revise Semiconductor Rules Within Two Months, Says Piyush Goyal 

0
The planned changes aim to simplify approvals and make it easier for semiconductor manufacturers to source equipment and components from global suppliers.  India will amend...

North American EMS Book-to-Bill Ratio Rises to 1.29 in July 2026

0
The Association cautioned that month-to-month movements can be affected by seasonality and short-term volatility The North American electronics manufacturing services (EMS) sector recorded a book-to-bill...

Learn From Leaders

(L-R) Nikesh Gondchawar, Strategic & Technical Advisor – Robotics Manufacturing; Shrikrushna Kakade, Founder Partner; Nikhil Kakade, Senior Technical Advisor – Robotics & Control Systems, SlightGen Solutions LLP

“A Made-In-India Robotic PCB Soldering System That Automates The Through-Hole Soldering Process!” – Shrikrushna...

0
Electronics manufacturing is complex, and automation often comes at a high cost. To bridge this gap and offer a more affordable solution in India,...
Navdeep Narula, Executive Director, Client and Endpoint Solutions, Ingram Micro, India

“Enterprise Computing Is Shifting From CPU to GPU And Now Toward NPU-Based Systems ”...

0
The shift from CPU to GPU to NPU-based computing is redefining today’s enterprise endpoints. In an exclusive conversation, Navdeep Narula from Ingram Micro discusses...

India’s Robotics Push Opens New Hardware Opportunities

0
How do you build India’s physical AI future when critical robot components still come from overseas? Niqo Robotics reveals where the gaps remain.  India’s push...
Gadhadar Reddy, CEO and Founder, NoPo Nanotechnologies

How A Material Thinner Than Human Hair Could Transform EV Batteries And Electronics –...

0
What if a material 200,000 times thinner than a human hair could transform EV batteries, semiconductors, and advanced electronics? NoPo Nanotechnologies is making that...
Raja Rajeev Kumar, Mentor at IIT Startups, Chairman of the Board of Trustees, LaxmiRamaVarma Holdings International, and Founder and CEO, ChromoSoul Ventures

“Build Strong Startups, and Funding Will Follow”- Raja Rajeev Kumar, IIT Startups, LaxmiRamaVarma Holdings...

0
While AI and software startups attract attention and capital, electronics ventures often struggle for both. Raja Rajeev Kumar from IIT Startups, LaxmiRamaVarma Holdings International...

Startups

(L to R) C2i Semiconductors Founders—Vikram Gakhar, Founder & Director, Mixed Signal; Preetam Tadeparthy, Founder, CTO, VP, Engineering; Ram Anant, Founder & CEO; B.S. Dattatreya, Founder & Director, Power

Bengaluru Startup Targets AI Data Centre Power Delivery

0
C2i is building power systems that can help AI servers use electricity more efficiently and reliably. Two friends, Ram Anant and Preetam Tadeparthy, were working...
(L-R) Sri Kusulu Devalla, Co-Founder and Hetendra Singh Rathore, Founder, Segritech

“We don’t just sort fruit; we match every quality grade with the right buyer.”...

0
An agritech startup has developed an AI-powered machine that sorts and grades fruits directly on farms, helping reduce post-harvest losses by connecting produce with...
Akshar Vastarpara, Founder and CEO, Vicharak

“Our SBCs Are Designed As Complete Edge-Computing Platforms That Combine Everything On A Single...

0
An Indian startup builds affordable edge AI boards for robots, drones, and industry, positioning them as Raspberry Pi alternatives. In an EFY interview with...
Dr Naveen Yanduru, CEO, Axiro Semiconductor Private Limited

“India Can Lead In IP—If It BacksIts Own Builders”

0
Axiro Semiconductor designs RF and satellite chips, ships millions worldwide, and retains its startup mindset while tackling complex technical challenges. In a conversation with...
Dr Sanjay Ahuja, Founder and CEO of Cionlabs, India

“We are solving India-specific challenges rather than offering generic ‘black box’ IoT solutions.”

0
From hybrid mesh networking to AI-enabled edge devices, an Indian IoT startup is developing home-grown solutions to improve connectivity, strengthen privacy and support the...