KH30 Series Active Antenna

Product Introduction

• Highly Sensitive Effective Antenna:
  

With the establishment and development of electromagnetic compatibility standards, the detection of weak electromagnetic field interference signals in space is very necessary. The antenna factor (also known as antenna effective height; antenna correction factor; antenna attenuation factor) of passive whip antennas (for electric field measurement) and loop antennas (for magnetic field measurement) attenuates approximately 90~50dB from low frequency to high frequency within the 0.5KHz frequency range. This makes it difficult to detect magnetic fields below 50dB across the full frequency band even with the best contemporary EMI test receivers. The International Special Committee on Radio Interference (CISPR) Publication 16 clearly stipulates that active antennas complying with CISPR specifications are allowed. Our developed and manufactured KH30251 (whip antenna series) and KH30253 (loop antenna series) are designed based on this principle.

This series of antennas is broadband type, requiring no tuning across the full spectrum, especially suitable for use in scenarios with automatic measurement of multiple frequency points.

Operating frequency range: 9KHz~30MHz (can be extended up to 50MHz, down to 500Hz)

• Broadband Star-type Antenna (Passive Type):

With the development of television, communication, and radar technology, the frequency range has gradually expanded from meter wave bands. Transmitting and receiving spatial radio signals urgently requires broadband, high-gain antennas to replace the trouble of configuring different structural antennas for different frequency bands over a long period. Antennas can simultaneously transmit multiple frequency band radio signals.

For example: FM signals (30~60MHz, 88~108MHz);

TV signals (60~860MHz);

      Mobile phone signals (470~960MHz);

      Computer antenna internet signals (2.4~3GHz)

For this purpose, we have developed two types of star-type broadband antennas and obtained national patents (Patent No.: ZL20102011056816)

Main Technical Specifications

Contact Information

Phone: 4000062299

Email: khhk2299@sina.com

Address: 17th Floor, Building 6, Jiayue Plaza, Daxing District, Beijing