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Example Test Reports Gallery

Sample Test Reports

Downloadable test results for various interesting public domain antennas

Log Periodic Spiral Antenna PCB Artwork View

Example 11: PCB Spiral Antenna

This interesting test subject by HexandFlex is a large PCB log periodic spiral antenna (not an Archimedes spiral). Its design goal was to be circularly polarized so that it would be polarization insensitive and large enough to function down to 400 MHz. The designer’s write-up of the design flow is detailed in this series of […]

Raspberry Pi Antenna Radiation Patterns

Example 12: Raspberry Pi Model 3B+ Antenna Evaluation

This antenna example is a common and popular option for most IoT devices operating in the 2.45 GHz “WiFi” ISM band. It is a PCB antenna designed by Proant AB and replaces the dielectric SMT chip antenna previously used the “Pi’s”. The design is a planar resonant cavity using two sets of SMT capacitors to […]

Intruder Detection Radar Modules CDM324 HB100 RCWL-0516

Example 13: Radar Modules

Low Cost Microwave Radar Modules For 3, 10, and 24 GHz This example page showcases 3D EIRP radiation patterns for three popular consumer/hobbyist radar modules. All three are normally used for proximity sensing and intruder detection. The study of these similarly sized transmitters at 3, 10, and 24 GHz highlights the ability of antennas to […]

Spiral Antenna PCB for UWB Front Icon DEEPACE

Example 14: UWB Spiral Antenna

This example page showcases our circularly polarized antenna testing with swept frequency 3D patterns and a 4D gain vs frequency animation video. The antenna was purchased on eBay for $7.49 and shipped directly from China. The basic specifications were simply listed as 3 to 6.5 GHz with a gain of 3.5 dBi circularly polarized. The […]

Gain dBi test service measured Ethertronics Octa Band PCB antenna

Example 1: Ethertronics Octa-Band

This antenna test service focuses on a popular ultrawideband embedded cellular antenna. It covers the 700, 750, 850, 900, 1800, 1900, and 2600 MHz bands. We tested it on Ethertronics’ own “demo board”, which is a 140x50mm ground plane PCB with SMT matching components. We chose 3D patterns with a frequency range of 650 to 2700 MHz […]

Example 2: Polar Plots of PCB LPDAs

Two Inexpensive PCB Antennas Descriptions Our antenna test service evaluated two PCB antennas designed by Kent Britain WA5VJB. They are both Log Periodic Dipole Array (LPDA) antennas designed for the following ranges: Antenna “2A” Operating Range 400 – 1000 MHz Evaluated 300 – 1300 MHz (every 10 MHz, 101 frequencies) 2D polar cuts in the E and H […]

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RHCP Cavity Backed Spiral Antenna GPS Testing Spherical Pattern Measured in Far Field Anechoic Chamber

Example 4: RHCP Cavity Backed Spiral

This antenna test service example features full “vector” (gain with phase) circularly polarized measurements on an AEL Cavity Backed Spiral Antenna ASN112AA RHCP 1-4GHz (now made by Cobham Sensor Systems). First, standard 2D polar patterns were gathered from 1 to 6 GHz in 25 MHz steps (201 plot-able patterns) with full vector gain/phase data. Then our […]

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Gain dBi test service measured Ethertronics Octa Band PCB antenna

Example 1: Ethertronics Octa-Band

This antenna test service focuses on a popular ultrawideband embedded cellular antenna. It covers the 700, 750, 850, 900, 1800, 1900, and 2600 MHz bands. We tested it on Ethertronics’ own “demo board”, which is a 140x50mm ground plane PCB with SMT matching components. We chose 3D patterns with a frequency range of 650 to 2700 MHz […]

Raspberry Pi Antenna Radiation Patterns

Example 12: Raspberry Pi Model 3B+ Antenna Evaluation

This antenna example is a common and popular option for most IoT devices operating in the 2.45 GHz “WiFi” ISM band. It is a PCB antenna designed by Proant AB and replaces the dielectric SMT chip antenna previously used the “Pi’s”. The design is a planar resonant cavity using two sets of SMT capacitors to […]

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Gain dBi test service measured Ethertronics Octa Band PCB antenna

Example 1: Ethertronics Octa-Band

This antenna test service focuses on a popular ultrawideband embedded cellular antenna. It covers the 700, 750, 850, 900, 1800, 1900, and 2600 MHz bands. We tested it on Ethertronics’ own “demo board”, which is a 140x50mm ground plane PCB with SMT matching components. We chose 3D patterns with a frequency range of 650 to 2700 MHz […]

Example 2: Polar Plots of PCB LPDAs

Two Inexpensive PCB Antennas Descriptions Our antenna test service evaluated two PCB antennas designed by Kent Britain WA5VJB. They are both Log Periodic Dipole Array (LPDA) antennas designed for the following ranges: Antenna “2A” Operating Range 400 – 1000 MHz Evaluated 300 – 1300 MHz (every 10 MHz, 101 frequencies) 2D polar cuts in the E and H […]

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