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CAR RADIO WITHOUT ANTENNA
In the present era, the various technologies we can see. On average, every three months there is a new technology. So not supprisingly, with so many unique and innovative equipment trigerred. Car`s radio without antenna are our project. This is an idea from development of handphone. We can see the development of handphone from the radiophones
A Compact Co-Planar Waveguide-Fed Zeroth-Order Resonant Antenna
Zeroth-order resonant (ZOR) antenna manufactured on microstrip transmission lines has attracted great interest in the small antenna applications. Many techniques have been employed in order to miniaturize the composite right/left handed (CRLH) transmission line (TL) unit cell size, such as using meander line shunt stubs  or using the Sievenpipe
Active AM Radio Antenna Amplifier / Preamplifier Circuit
The antenna amplifier circuit has a part count of about 40, using the following active parts: 2 NPN transistors (BC548`s), 1 MOSFET (BF981), 2 Varicap diodes (KV1235), as well as a 6v2 zener-diode. there is and a 330uH (micro Henry) inductor / coil, which can be modified for operation on other frequency bands. Designed to work with a telescopic wh
Antenna Analyzer Progress
The Anderson Loop is the simplest detector. Most hams don`t refer to it as an Anderson Loop, and I`ve only seen the loop described as such by the folks who patented it. A good example of an analyzer that uses this detector is the VK5JST Aerial Analyzer. Below is a basic schematic of the detector. Another popular detector is the Wheatstone bridge.
7-MHz Loop Antenna
The loop may be fed inside the center of one of the vertical sides if vertical polarization is preferred. For horizontal polarization, it can be necessary to feed either in the horizontal sides in the center. Optimum directivity happens at proper angles towards the airplane in the loop, or in much more hassle-free terms, broadside through the loop
IFA Antenna matching for CC2500
I`ve designed IFA antenna in Altium as described in DN007 and created a balun circuit from the schematic design of CC2500EM Reference Design (swrr016a). I`m very new to RF designs, as I could understand from application notes and forum posts; this design shall work with the right thickness of PCB. My PCB will be a 2 layer PCB and I`m planning to u
Antenna Low Power RF & Wireless Connectivity
The "green area" is where should be placed the TRF7970A `s antenna (Between 0 ohm resistors, the antenna should be connected). TRF7970A `s antenna can be done step by step according to the document "Antenna Matching for the TRF7960 RFID Reader (SLOA135) ". And here comes the part I do not understand: What role has the "red area" of the figure Why
Active Antenna HF/VHF/UHF 3-3000MHz
This Blog show the Different Electronics Circuit Design, Application, Fields and Resources which could help students, engineers, professionals, and common people whose interest is in electronics! For your comments, suggestions, or your looking for a circuit or design, or a electronics designer, please send you Inquiries to pcb1001@gmail. com. We
wideband dtv uhf antenna tv amplifier
This HD TV UHF wideband amplifier(Ultra High Frequency amplifier) has a total gain of 10 to 15 dB in the 400 ? 850 MHz domain frequency so it can be used where the tv signal is weak. For this UHF antenna tv amplifier to work correctly you need to cut the components pins as short as possible. C1, C2, C6, C7 are SMD type ( surface mounted ). This...
VHF Antenna Amplifier Circuit Using BFT66 Transistor
Here`s a design circuit for very simple antenna amplifier electronic circuit project can be designed using this circuit diagram. This antenna amplifier electronic circuit can be used for a frequency range between 1 and 300MHz. This circuit antenna amplifier can be used for high frequency and VHF band (for radio and TV) and will provide a 22 dB gai
Wideband DTV UHF Antenna TV Amplifier
This Wideband DTV UHF Antenna TV Amplifier has a total gain of 10 to 15 dB in the 400 850 MHz domain frequency..
ANTENNA DESIGN FOR FM TRANSMITTER
Two aluminum rods, each of length "L" in meters are joined together through an insulator as shown in fig. From center, 75 ohm cable is feeded just like ordinary TV antenna.
15dB UHF Antenna Preamp Circuit
This is an UHF band TV antenna preamp circuit with 15dB gain and build by a transistor. It is formed based on BF180 UHF Transistor. This circuit is a simple circuit. This is a figure of the circuit. The principle operation of the circuit is two stages. The first stage is an band pass filter constructed by the C1, CV1, L1, L4, C7 and C3, the second
VSWR Indicator for the Fuchs Circuit
QRP antenna tuner circuit
Low power ( 3 to 30 MHz) transmitters constructed by hams are generally called QRP`s. For such transmitters a well tuned antenna is a must. If the impedance is not properly matched there will be a little or no output. But if properly matched there will be great results. A circuit for matching the antenna properly with the transmitter id given...
TV antenna booster
The circuit shown here is of a TV antenna booster based on the transistor BF180. The circuit operates in the UHF band and has a gain of 15dB. Capacitors C2, C3 C4, C5 and inductors L3, L4 forms a UHF band pass filter. The input signal is fed to the emitter of Q1 through this filter. Resistor R2 and R3 biases the transistor Q1 which is wired in the
Bgb707l7esd As An Fm Radio Antenna Lna
This document provides details on using the ATA6833-DK for BLDC Motor Control applications. The BLDC Motor Control Kit consists of two boards: Basic board with a BLDC Gate Driver SBC (System Basis Chip) ATA6833 ATA6834 and external MOSFETs Controller board with a Microcontroller ATMEGA32M1 and a user Interface The temperature ran
CXG1024N High-frequency Spdt Antenna Switch
The CYWUSB6953 is a complete Radio System-on-Chip device, enabling many simple RF systems to be implemented with a single device and a handful of Discrete components. The CYWUSB6953 is designed to implement low cost Wireless systems operating in the worldwide 2. 4-GHz Industrial, Scien- tific, and Medical (ISM) frequency band (2. 400 GHz2. 483...
LA1061M Antenna Switching Diversity Circuit For FM Tuners
On-Glass Antenna Amplifi er AGC IC LA1070 The LA1070 is an Automatic gain control IC for use with automotive on-glass Antennas By Sanyo Semiconductor Corporation
LA1070 On-Glass Antenna Amplifier AGC IC
14-20dB gain simple active antenna circuit diagram
A very simple active antenna can be designed using this electronic circuit diagram. This active antenna is based on transistors and other few common electronic components. Because in practice of frequency short-wave reception, the general rule is that if the used antenna is longer, the stronger the received signal will be we need in some cases
20dB antenna amplifier circuit diagram electronic project
T1 transistor must be BF200 type (or similar ) and the other transistors can be BF214 type. For high efficiency, the antenna amplifier must be placed at a small distance from antenna. This amplifier circuit can be powered using a power supply that supply an output voltage between 6 and 12 volts DC. For powering this device you need to use a sh
43 dB antenna amplifier circuit diagram
This antenna amplifier is very useful for 35kHz-150Mhz frequency band. This antenna amplifier circuit is based on transistors and has a low 3dB non-linearity and a high gain of 43 dB. The input and output impedance for this rf amplifier is 75 ohms. All used transistors are of the same type and can be BF183, BF200 or other similar type. The tot
Antenna selector circuit diagram electronic project
This antenna selector circuit diagram electronic project is designed using common electronic components and allows switching between two FM antennas via a logic signal. Gates IC1b and IC1a provide switching and interface between the logical form of 5 and 12 V supply voltage, required for selection. When input A is logic state H, IC1a`s output will
Antenna selector circuit diagram using PIN diodes
This antenna selector circuit diagram uses PIN diodes which eliminate disadvantages of mechanical switches (especially at high frequency current) PIN diodes can be used which are ideal for this purpose. Resistance diodes such changes linearly in a wide range of current values. This feature is ideal for a number of applications: by changing the cur
VHF antenna amplifier circuit diagram
This RF antenna amplifier can be used for high frequency and VHF band ( for radio and TV) and will provide a 22 dB gain. This RF antenna amplifier electronic project has a very low noise, under 1. 6dB. L1 coil has a 6uH value, but can be used any coil for high frequency ( with a value between 5. 6 to 6. 8 u H). L2 coil is an air core type coil a
FM Booster~Active FM Antenna Amplifier
This FM booster that can be used to listen to programmes from distant FM stations clearly. The circuit comprises a common-emitter tuned RF preamplifier wired around VHF/UHF transistor 2SC2570. (Only C2570 is annotated on the transistor body. ) Input coil L1 consists of four turns of 20SWG enamelled copper wire (slightly space wound) over 5mm diamet
Wideband UHF Amplifier - Antenna TV Amplifier Circuit
This UHF wideband amplifier(Ultra High Frequency amplifier) has a total gain of 10 to 15 dB in the 400 850 MHz domain frequency so it can be used where the tv signal is weak. For this UHF antenna tv amplifier to work correctly you need to cut the components pins as short as possible. C1, C2, C6, C7 are SMD type ( surface mounted ). This antenn
Shortwave antenna amplifier
This is a wide band shortwave SW antenna amplifier. The frequency band is 1 to 30 MHz and a medium gain of 15 dB. The input stage is built with MPF102 and..
FM Antenna Booster Circuit
This is a low cost fm antenna booster that can be used to listen to programmes from distant FM stations clearly. The antenna fm booster circuit comprises a..
TV Antenna Amplifier Circuit
A very simple and cheap tv antenna amplifier circuit built with BF961 a NChannel Dual Gate MOS common transistor used for input and mixer stages especiall..
Car Antenna Amplifier Circuit
The total gain of the car antenna amplifier is around 30 dB and the input impedance at 30 Mhz is around 10 K ©. The amplifier must be mounted directly at the base of the antenna to avoid signal losses caused by the capacitive character of the coaxial cable. This antenna amp must be used for non-mobile recievers. If you intend to install this circu
Active Antenna Circuits
Antenna Tuner Circuits
Yagi Uda Antennas
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
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