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This letter presents an electrically small probe for measuring a time‐domain electric field (E‐field) from 0.6 to 2.6 GHz. The probe design is based on RF‐over‐fiber technology. The most important feature of the probe is to improve its sensitivity, achieved using a low‐noise amplifier (LNA) and a postamplifier (Post‐amp) on the transmitting and receiving sides of the probe, respectively. Measurements...
Designing a noncontact measurement probe can reduce costs. But this probe may be two questions, the first question is how to correctly received the signal, because, unlike non-contact probe contact probe signals can be passed through the probe correctly, the second question is how to reduce signal attenuation in the probe passes, because non-contact probe signal is received via an antenna, the signal...
A time-domain E-field probe is proposed in this study. It detects E-fields in single polarization between 0.6 to 2.6 GHz. For the sake of RF transparency, optical fiber is used to replace coaxial cable to transmit the signal from the transmitter to receiver. Thus, RF-over-Fiber (RoF) technology is applied for signal transmission. VCSEL and photodiode (PD) act as the transmitter and receiver respectively...
This paper introduces a probe in particular for near field measurements of electric field and magnetic field. It has a very tiny size about 1×1×1 cm3. The photoelectric power supply and optical signal transmission make it have smallest field distortion. It enables measurements both in the time and frequency domain. Due to standard far field measurements needs a standard and an expensive system. We...
This paper presents an E-field probe especially for near field RF measurements [1-6]. Its whole loop includes antenna, solar cell as the optical power supply, VCSEL (vertical cavity surface emitting laser) as an electrical-to-optical communicator and photodiode as an optical-to-electrical converter. The probe operates at frequencies 300k∼3GHz. Using optical signal transmission ensures a negligible...
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