Circuits & Schematics Radio: antennas antenna
Subsection: "Radio"
Including:| Antennas Morse |
Search results: 20 Output: 1-10
- .. frequency stability at the expense of increased power consumption.) Cascode-connected transistors Q 2 and Q 3 form an antenna amplifier that improves the receiver's noise figure and provides some RF isolation between the ...01-03-2023
- .. time constant, R 2 C 2 , equating to a 10- to 50-MHz RF band. The last inverter is a power driver for the tuned filter and antenna. The circuit requires a 3 to 5 V battery. Two AAA cells can power it for approximately 15 days. If you need ...17-01-2023
- .. and selectivity that is comparable to the best commercial handheld shortwave receivers using their built in whip antennas. It can pull in many North American shortwave without the need for an external antenna, as well as many ...
.. be used for receiving AM, CW, and SSB RF transmissions in the medium and shortwave bands without the need for an external antenna. Figure 1. This LM386 schematic is taken from a Texas Instruments datasheet. A close look at the ...18-06-2020 - .. in this position. The quench frequency of this oscillator is about 21 kHz. Figure 2. The tuner with forced quenching. The antenna coil is composed of five turns of space wound AWG 18 wire on a 1/4 form. The windings are spaced one ...18-10-2016
- .. perform a link budget while starting an RF design. The link budget considers range, transmit power, receiver sensitivity, antenna gains, frequency, reliability, propagation medium (which includes the principles of physics linked to ...29-12-2013
- .. offer an excellent combination of size, gain and bandwidth, and can be mounted with normal SMT processes. Ceramic Chip Antennas are sensitive to their application environment, such as location of ground planes, the thickness of the ...
.. 2013 This Multilayer Chip Antenna series is designed for the applications covering ISM band, WiFi, Bluetooth Zigbee at 2.4 GHz,China Mobile ...06-12-2013 - .. any cable in between the reader and the antenna. The application note is intended to give a practical guide to design antennas and calculate the matching components for the CLRC663 Family. The user can follow the guideline to design ...
.. Note AN11019 July 2012 This document describes the principles of antenna tuning for the contactless reader IC CLRC663, MFRC630, MFRC631, SLRC610. A practical example is given to ...15-11-2013 - .. FR4 substrate. Unlike cost-effective, two-layer designs, this design uses additional layers for dc routing and passive antenna isolation from high-gain-amplifier stages to prevent any potential signal leakage and feedback that may ...15-10-2013
- .. DAC integral nonlinearity (INL). RF modulation may also be caused by voltage induced from a noise source perhaps from an antenna in the system. The figure shows an LC-tank circuit portion of a voltage-controlled oscillator. This circuit ...29-02-2012
- .. Signals above 60mV introduce distortion, so the pot attenuates down from that level. In the absence of a standard FM radio antenna, 75cm (30 inches) of wire will suffice as a transmitting antenna. For best reception, it should be mounted ...15-11-2011
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