#RFDesign — Bluesky Posts

A Guide to Superhet Radio Technology This book covers all the basic aspects of the superhet radio. The aim was to provide all the essential elements of the superheterodyne radio in one volume, explaining the background, the basic concept...

5 months ago

A Guide to Superhet Radio Technology - ebook

This book covers all the basic aspects of the superhet radio - discover all the contents in the description.

Check it out &buy it now: electronics-notes-shop.fourthwall.com/products/a-g...

#superhet #superheterodyne #radio #technology #RFdesign

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Gary @N8DMT

@n8dmt.mastodon.radio.ap.brid.gy

5 months ago

Photo of a small copper clad circuit board prototype circuit above a hand drawn schematic based on the circuit card. Circuit appears to be a RF detector with a SMA jack feeding a 50 Ohm resistor stack, then a resistor divider feeding Pin 1 of an unknown 8 pin small IC with marking of C14 9CZ on it. Connections from the board feed to a 9-pin D-Sub jack on the board.

Photo of the layout of the board which appears to be cut into copper cladding with some sort of mill. There are numerous via connections from top to bottom layers that do not have (and need to have) wires soldering them together. The gold SMA-jack is on the left and the 9-pin D-Sub connector is at the right. There are two resistors on the back side (not shown).

Close up photo of an unknown 8 pin IC with laser marking of C14 9CZ in two rows on it. The DC supply bypass parts are to the left of the photo. Open via holes are present (missing their solder-through connections). Can you identify this IC? Have looked for over an hour with no success. Mastery Part!

Photo of a diode from divided RF input to V+ with third leg to GND connection. Suspect this is a reverse/over-voltage protection part...

Looking at a hand-me-down circuit board that appears to be a RF detector function on a small double-sided circuit board. It has parts soldered onto it, but the main IC (marked C14 9CZ) is a mystery. Any guesses? Once IC is identified, can proceed with adding […]

[Original post on mastodon.radio]

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@engineersheaven.bsky.social

8 months ago

What is Radio Frequency Engineering? at Engineers Heaven Q & A A Scope of Work and Definition along with its Brief History.,

📡 What is Radio Frequency Engineering?

👉 Click here: www.engineersheaven.org/forum/topic/60
to visit our website and read the full article.

#RadioFrequencyEngineering #WirelessTech #SignalProcessing #RFDesign #TelecomEngineering #SmartCommunication #SatelliteTech #EngineersHeaven #STEMeducation

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9 months ago

Understanding RF Spectrum Analyzers

RF spectrum analyzers are test instruments used to look at signals in the frequency domain, i.e. a plot of signal strength against frequency.

Find out all about them: www.electronics-notes.com/articles/tes...

#soectrumanalyzer #spectrumanalysis #RFdesign

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@eliterf.bsky.social

9 months ago

📡 We’re hiring: RF Amplifier Design Engineer

Join Elite RF to design next-gen high-performance RF power amps!

📍 Locations: Midwest, Southwest, Mountain West, Northwest
📧 Apply: deep@eliterf.com

#RFEngineer #EngineeringJobs #EliteRF #NowHiring #RFDesign

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10 months ago

RF In-Line Power Meters - what are they & how do they work?

In line wattmeters are able to measure the RF power being transferred from a source to a load by sensing the power flowing in the feeder.

Read more: www.electronics-notes.com/articles/tes...

#wattmeter #RFdesign #electronics

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10 months ago

RF Attenuator Design Infographic

RF attenuators are used for reducing signal levels and impedance matching so they are very useful for RF design.

Download the full sized (A4 / Letter paper) infographic: www.electronics-notes.com/articles/sum...

#RFattenuators #RFdesign #electronics

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10 months ago

Understanding RF Mixer Specifications: How to specify them.

The performance of an RF mixer can be a pivotal element in the overall operation of an RF circuit design: selection of the correct mixer is key.

Find out now: www.electronics-notes.com/articles/rad...

#RFmixer #electronics #RFdesign

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10 months ago

RF Mixing / Multiplication 101

RF mixers are the key element in many RF circuits enabling signals to be converted from one frequency.

Discover more: www.electronics-notes.com/articles/rad...

#RFmixer #RFdesign #electronics

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10 months ago

Gallium Nitride GaN FETs & HEMTs: what they are & how they work.

GaN devices are taking the electronics industry by storm at the moment.

Find out how they work: www.electronics-notes.com/articles/ele...

#GaN #GaNFET #electronics #RFdesign

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@eliterf.bsky.social

10 months ago

When clarity counts, the right LNA makes all the difference. Our engineers break down gain, noise figure, linearity & more so you can build it up.

🔗 Read the blog: t.ly/l9NfG

#EliteRF #LNA #LowNoiseAmplifier #RFDesign #EngineeringInsights #TechThatPerforms

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Comprehensive analysis and exploratory design of graphene-based subharmonic mixers operating at the gigahertz band - Discover Nano Ambipolar conductance in graphene field-effect transistors (GFETs), and in particular their quasi-quadratic I–V transfer characteristic, makes these devices excellent candidates for exploiting subharm...

11 months ago

Double Balanced Mixer: circuit, theory, operation

Double balanced RF or frequency mixers are able to provide high levels of performance and they are used in many exacting RF applications.

Read more: www.electronics-notes.com/articles/rad...

#RFmixer #Rfdesign #doublebalancedmixer

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PEARL Group

@pearlugr.bsky.social

11 months ago

Check it out here 👉 doi.org/10.1186/s116...

#Graphene #Nanoelectronics #HighFrequency #RFdesign #Research #DiscoverNano #2Dmaterials

(4/4)

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Gary @N8DMT

@n8dmt.mastodon.radio.ap.brid.gy

11 months ago

Screen capture of the 10-30MHz RF amplifier simulation running in LT-Spice on the Win11 Ham PC. The upper portion is the simulation results showing gain decreasing slightly from 32.6 to 28.8 dB over the frequency range. The lower portion shows the schematic, including 4.2V bias network for the IRF510 devices.

@hamchallenge HC22S #HamChallenge: Simulate an electric circuit. Used free LT-Spice to model a ~35W P-P RF power amplifier. Included a simple output graph showing dB gain of the circuit. Other possible simulations include input return loss, output match, time […]

[Original post on mastodon.radio]

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1 year ago

What's inside a wideband directional coupler? The lid of the box lifted. A thread🧵..
#RFDesign #KiCad #RFEngineering #gquipment

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1 year ago

New: Introducing a 10 MHz - 6000 MHz wide band directional coupler (DIRCPL-BR1-16-10-6000). You can find it in the web shop.

Specs: 2 dB insertion loss, 16 dB coupling, -30 dB directivity, 10 - 6000 MHz

www.gquipment.com/28-rf-direct...

#RFDesign #PCB #KiCad

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1 year ago

At this time, this is my favorite circuit diagram.
#RFDesign #PCB #Electronics #KiCad

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1 year ago

1/8 How to configure a PLL synthesizer using algorithms that find exact solutions? Here’s a demonstration with the Si5351A PLL.
#gquipment #PLL #RFDesign

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1 year ago

1/3. Created several example PCBs. They all show different solutions for implementing a transmission line with a combination of RF Enclosure Mini, SMA connector type and tline configuration.
#gquipment #RFDesign #KiCad

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