We love these low cost practical antennas by RFSPACE. They offer a range of interesting planar Vivaldi, LPDA, and horn antennas that are broadband and directional at reasonable prices. Their product line is being extended to some narrow-band and omni-directional broadband antennas as well. The Vivaldi Antenna (sometimes called a Tapered Slot or Vivaldi Notch) […]
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 […]
Example 5: Dual Port Corrugated Feed Horn
Our antenna testing services were used to evaluate this dual band feed horn (designed by Paul Wade W1GHZ) for amateur radio satellite use. It has orthogonal feeds for two bands, 5.8 GHz and 10.4 GHz. Testing was done in one large sweep of 5 – 12 GHz (in 25 MHz steps) to save on setup […]
Example 6: LHCP Omnidirectional FPV Antenna
This Example Test Report features a small LHCP omnidirectional antenna designed by the talented Maarten Baert. It is a sophisticatedly simple design with three PCBs on a semi-rigid coax and an SMA connector. This inexpensive antenna was designed for the 5.8 GHz WiFi market, targeting FPV (first person view or remote person view) drone control transceivers. When […]
Example 7: Antipodal Vivaldi with Slot Edges
We had the pleasure of evaluating this “pretty” antenna. It goes by the formal name of an antipodal PCB Vivaldi antenna with exponential slotted edges. Although, it is better known as a Palm Tree antenna! This design is by Iain, the author of the HexAndFlex Blog. Our antenna testing services were used to evaluate this […]
Example 8: Triple Feed Patch Array CP Antenna
Here are vector gain test results of Maarten Baert’s latest circularly polarized 5.8 GHz antenna. There are two versions covered here: a CP Triple Feed (single) Patch and a Triple Feed Patch Array. First the Triple Feed Patch. The designer’s vision is: “The (center) patch has three feed pins that are fed with a 0°, […]
Example 9: Ka Band Sector Horn
Our lab can perform measurements up through 40 GHz covering the Ku, K, and Ka bands. To highlight this capability, we have patterned a surplus WR28 wave-guide fed sector horn. Since this horn has a beam width of only 6.5 degrees in the E-plane, it was patterned with our high resolution options. The H-plane is […]
Example 10: Eggbeater LEO Satellite 432 MHz (70cm)
This omnidirectional circularly polarized antenna is designed for up-facing coverage of Low Earth Orbit Satellites. It is model EB-432/RK70CM from M2 Antenna Systems. Their website description is: ” The EB-432 EGGBEATER offers exciting new performance characteristics for both fixed and mobile operations. The EGGBEATER produces smooth Omni directional HORIZONTAL polarity at the horizon. Above the horizon, the […]
We love these low cost practical antennas by RFSPACE. They offer a range of interesting planar Vivaldi, LPDA, and horn antennas that are broadband and directional at reasonable prices. Their product line is being extended to some narrow-band and omni-directional broadband antennas as well. The Vivaldi Antenna (sometimes called a Tapered Slot or Vivaldi Notch) […]
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 […]
Example 5: Dual Port Corrugated Feed Horn
Our antenna testing services were used to evaluate this dual band feed horn (designed by Paul Wade W1GHZ) for amateur radio satellite use. It has orthogonal feeds for two bands, 5.8 GHz and 10.4 GHz. Testing was done in one large sweep of 5 – 12 GHz (in 25 MHz steps) to save on setup […]
Example 7: Antipodal Vivaldi with Slot Edges
We had the pleasure of evaluating this “pretty” antenna. It goes by the formal name of an antipodal PCB Vivaldi antenna with exponential slotted edges. Although, it is better known as a Palm Tree antenna! This design is by Iain, the author of the HexAndFlex Blog. Our antenna testing services were used to evaluate this […]
Example 8: Triple Feed Patch Array CP Antenna
Here are vector gain test results of Maarten Baert’s latest circularly polarized 5.8 GHz antenna. There are two versions covered here: a CP Triple Feed (single) Patch and a Triple Feed Patch Array. First the Triple Feed Patch. The designer’s vision is: “The (center) patch has three feed pins that are fed with a 0°, […]
Example 9: Ka Band Sector Horn
Our lab can perform measurements up through 40 GHz covering the Ku, K, and Ka bands. To highlight this capability, we have patterned a surplus WR28 wave-guide fed sector horn. Since this horn has a beam width of only 6.5 degrees in the E-plane, it was patterned with our high resolution options. The H-plane is […]
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 […]
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 […]
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 […]
We had the pleasure of evaluating this “pretty” antenna. It goes by the formal name of an antipodal PCB Vivaldi antenna with exponential slotted edges. Although, it is better known as a Palm Tree antenna! This design is by Iain, the author of the HexAndFlex Blog. Our antenna testing services were used to evaluate this […]
Example 8: Triple Feed Patch Array CP Antenna
Here are vector gain test results of Maarten Baert’s latest circularly polarized 5.8 GHz antenna. There are two versions covered here: a CP Triple Feed (single) Patch and a Triple Feed Patch Array. First the Triple Feed Patch. The designer’s vision is: “The (center) patch has three feed pins that are fed with a 0°, […]
Example 9: Ka Band Sector Horn
Our lab can perform measurements up through 40 GHz covering the Ku, K, and Ka bands. To highlight this capability, we have patterned a surplus WR28 wave-guide fed sector horn. Since this horn has a beam width of only 6.5 degrees in the E-plane, it was patterned with our high resolution options. The H-plane is […]
Example 10: Eggbeater LEO Satellite 432 MHz (70cm)
This omnidirectional circularly polarized antenna is designed for up-facing coverage of Low Earth Orbit Satellites. It is model EB-432/RK70CM from M2 Antenna Systems. Their website description is: ” The EB-432 EGGBEATER offers exciting new performance characteristics for both fixed and mobile operations. The EGGBEATER produces smooth Omni directional HORIZONTAL polarity at the horizon. Above the horizon, the […]
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 […]
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 […]
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 […]
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 […]
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 […]
Example 5: Dual Port Corrugated Feed Horn
Our antenna testing services were used to evaluate this dual band feed horn (designed by Paul Wade W1GHZ) for amateur radio satellite use. It has orthogonal feeds for two bands, 5.8 GHz and 10.4 GHz. Testing was done in one large sweep of 5 – 12 GHz (in 25 MHz steps) to save on setup […]
Example 9: Ka Band Sector Horn
Our lab can perform measurements up through 40 GHz covering the Ku, K, and Ka bands. To highlight this capability, we have patterned a surplus WR28 wave-guide fed sector horn. Since this horn has a beam width of only 6.5 degrees in the E-plane, it was patterned with our high resolution options. The H-plane is […]
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 […]
Antennas By RFSPACE
We love these low cost practical antennas by RFSPACE. They offer a range of interesting planar Vivaldi, LPDA, and horn antennas that are broadband and directional at reasonable prices. Their product line is being extended to some narrow-band and omni-directional broadband antennas as well. The Vivaldi Antenna (sometimes called a Tapered Slot or Vivaldi Notch) […]
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 […]
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 […]
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 […]
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 […]
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 […]
Example 15: Quad Ridge Dual Polarized Vivaldi Horn
This interesting eBay find is a Teflon PCB dual polarized Vivaldi pair. It was specified in its listing as 698 to 6000 MHz for mobile phone testing. With dimensions of 100x100mm, we suspected it was too small to work at 700 MHz, but the Teflon PCB material hinted at microwave performance. We tested this 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 […]
Antennas By RFSPACE
We love these low cost practical antennas by RFSPACE. They offer a range of interesting planar Vivaldi, LPDA, and horn antennas that are broadband and directional at reasonable prices. Their product line is being extended to some narrow-band and omni-directional broadband antennas as well. The Vivaldi Antenna (sometimes called a Tapered Slot or Vivaldi Notch) […]
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 […]
Example 6: LHCP Omnidirectional FPV Antenna
This Example Test Report features a small LHCP omnidirectional antenna designed by the talented Maarten Baert. It is a sophisticatedly simple design with three PCBs on a semi-rigid coax and an SMA connector. This inexpensive antenna was designed for the 5.8 GHz WiFi market, targeting FPV (first person view or remote person view) drone control transceivers. When […]
Example 8: Triple Feed Patch Array CP Antenna
Here are vector gain test results of Maarten Baert’s latest circularly polarized 5.8 GHz antenna. There are two versions covered here: a CP Triple Feed (single) Patch and a Triple Feed Patch Array. First the Triple Feed Patch. The designer’s vision is: “The (center) patch has three feed pins that are fed with a 0°, […]
Example 10: Eggbeater LEO Satellite 432 MHz (70cm)
This omnidirectional circularly polarized antenna is designed for up-facing coverage of Low Earth Orbit Satellites. It is model EB-432/RK70CM from M2 Antenna Systems. Their website description is: ” The EB-432 EGGBEATER offers exciting new performance characteristics for both fixed and mobile operations. The EGGBEATER produces smooth Omni directional HORIZONTAL polarity at the horizon. Above the horizon, the […]
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 […]
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 […]
Example 15: Quad Ridge Dual Polarized Vivaldi Horn
This interesting eBay find is a Teflon PCB dual polarized Vivaldi pair. It was specified in its listing as 698 to 6000 MHz for mobile phone testing. With dimensions of 100x100mm, we suspected it was too small to work at 700 MHz, but the Teflon PCB material hinted at microwave performance. We tested this antenna […]
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 […]
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 […]
