WIDEBAND ACTIVE RECEIVING ANTENNA
#antenna
#wideband
#RF
#receiver
#active antenna
#signal reception
#radio
#communication
#wireless
#telecommunication
No description available.
Tuned Radio Frequency (TRF) Receiver
Superheterodyne receivers have been mass-produced since around 1924, but for reasons of cost did not become successful until the 1930s.
Superheterodyne receivers represent a pivotal advancement in radio technology, characterized by their ability to convert high-frequency signals into lower intermediate...
One kind of wireless remote control circuit
The remote control transmitter consists of a DTMF generator and an FM transmitter circuit. A UM91214B phone-specific integrated circuit (IC) is utilized to generate the DTMF signal, with a 3V power supply provided by a 3V zener diode (D1). The...
Shorty Forty Antenna
City dwellers and other flat dwellers know the practical difficulties they encounter when they try to put up an antenna for 40 meters. Finding space enough to accommodate 67 feet of wire is a real problem for them and most...
Antenna Booster for FM AM and SW Receiver
This AM/FM antenna booster circuit amplifies the broadband signal from the antenna. This antenna booster is designed to work for FM, AM, and SW receivers.
The AM/FM antenna booster circuit is an essential component for enhancing radio reception across various...
Simple receiver with microvolt sensitivity
The three-transistor circuit costs less than $10 to build, uses commonly available components, and consumes less than 10 mA from a single 9V battery. By winding coil L1 as shown, the circuit can receive signals in the 5 to 15...
RF Based Wireless Remote Control Switch
It is often necessary to control electrical appliances remotely, even when there is no direct line of sight between the transmitter and receiver.
In modern electronic applications, remote control systems are increasingly utilized for various purposes, including home automation, industrial control,...
SV3 Radio Magnadyne Radio
Most models produced in the 1930s utilize similar circuits, particularly in the RF section, which follows a common LW-MW-SW scheme. Variations among different models primarily stem from the inclusion or exclusion of variable selectivity control, the sophistication of tone controls,...
A Compact Co-Planar Waveguide-Fed Zeroth-Order Resonant Antenna
The zeroth-order resonant (ZOR) antenna, constructed using microstrip transmission lines, has gained significant attention in small antenna applications. Various techniques have been utilized to miniaturize the composite right/left-handed (CRLH) transmission line (TL) unit cell size, such as employing meander line...
Two Homing type Direction-Finding
The antenna consists of two vertical dipoles. Diodes in each dipole allow the circuit to select which antenna is active at any given time. When a positive voltage is sent up the coax feedline, diode D1 conducts and D2 blocks,...