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    Kirt Blattenberger,


RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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Planar Monolithic Industries' (PMI) May Product Announcement

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Planar Monolithic Industries (PMI) recently introduced eight new products in their extensive line of RF and microwave components. The most interesting is the Feasibility Study on PMI RF Radar Sense & Avoid Systems for Small UAS (Unmanned Aerial Systems), i.e., a drone carrying radar. Also included are a couple 16-way power combiners, an EW receiver module, an and amplifier. Contact PMI today for more information.

PMI Model No. RSAAS-001 - RF CafePMI Model No. RSAAS-001

Feasibility Study on PMI RF Radar Sense & Avoid Systems for Small UAS (Unmanned Aerial Systems)

*Feasibility Study*

PMI Model No. RSAAS-001 is a Radar Sense and Avoid System that has been designed to provide obstacle detection for the 3DR SOLO drone. This system uses (four) Doppler shift sensors to detect obstacles from all sides of the drone allows obstacles from small size (such as a wire or a tree branch) to large (such as a wall) to be detected when in range mechanical mounting can be adapted to fit other UAV platforms. Low power requirements make this system ideal for UAV application. Each sensor has onboard adjustment for distance of detection communication with 3DR SOLO PMI Model No. RSAAS-001 (side) - RF Cafeis accomplished over USB interface via 30-pin accessories port connector. 


  • Operating Voltage: 5.0 ± 0.2 VDC
  • Operating Current: 40 mA Typ.
  • Output Frequency Range: 10.525 GHz / 10.687 GHz
  • Antenna Characteristic: H-Plane Beamwidth: 120° Max
        E-Plane Beamwidth: 90° Max
  • Radar Range: 0.3 to 2 meters
  • Feasibility Study on PMI RF Radar Sense & Avoid Systems for Small UAS (Unmanned Aerial Systems) - RF CafeOutput Power: 10 dBm Max per sensor
  • Communication Protocol: USB 2.0
  • Mechanical Size: 12.8" X 7.2" X 1.9"
  • System Weight: 305 Grams
  • Exterior Finish: Black Anodized Aluminum

Environmental Ratings

  • Temperature:   30 °C to +55 °C (operating)
    -40 °C to +80 °C (storage)
  • Humidity:  0 to 95% RH @ 35 °C

PMI Model No. PD-16-0D5G18D0G-SFF

PMI Model EWDM-2G6G-65-70MV - RF CafePMI Model No. EWDM-2G6G-65-70MV is a CW immune EW detector module operating over the 2.0 to 6.0 GHz frequency range. This module features an internal switch used to switch between the "Bit In" and RF In" with input blanking on both ports. In addition, two amplified RF outputs are provided a 7 dB gain channel and a 33 dB gain channel. The video output is designed to drive a 150 ft. cable, while maintaining high speed, and excellent accuracy.

  • Input Frequency: 2.0 to 6.0 GHz
  • Input VSWR: 2.3:1 Max, impedance = 50 Ohm
       1.43 : 1 @ 50 Ω (BIT IN)
       1.30 :1 @ 50 Ω (RF IN)
       1.24 :1 @ 50 Ω (RF OUT)
       1.27 :1 @ 50 Ω (SW)
  • Noise Figure:  8 dB Max - Measured 4.55 dB
  • Input Power : (1) 1 W CW Max  (2) 100 W Peak @ PW = 1 µs % duty, Cycle = 1% Max
  • Control & DC Supply Connector:  D-type Female 9 pin
  • RF Connectors & Video Output (5 Places): SMA (F)
  • TTL Control Logic Interface: See Logic Table
  • SP3T Switch Specifications:
    • Switch Mode: See Logic Table
    • Isolation: 60 dB Min among all ports - Measured 76.58 dB
    • Switching Speed:100 ns Max Measured 53.4 ns
  • Output To 8-Way Power Combiner Specifications:
    • Linear Gain: +33 dB Min - Measured 43.6 dB
    • Frequency Flatness:  ±2.5 dB Max - Measured ±1.36 dB
    • 1 dB Compression Point:  +3 dBm Min - Measured 4.6 dBm
    • Saturated Power:  +14 dBm Max - Measured 11.38 dBm
    • Second Harmonics:  -9 dBc Min - Measured -15.16 dBc
    • Third Harmonics:  -12 dBc Min - Measured -12.34 dBc
    • I/O VSWR:  2.3:1 Max impedance = 50 Ohm

PMI Model No. EWDM-2G6G-65-70MV

PMI Model No. EWDM-2G6G-65-70MV - RF CafePMI Model No. APD-16-0D5G18D0G-SFF is a 16-way, In-Phase Power Divider operating from 0.5 to 18.0 GHz. This model offers an insertion loss of 20 dB with over 14 dB of isolation. The phase balance is 9° maximum and the amplitude balance is 2.0 dB maximum. Features include SMA female connectors. Unit size is 19.00" x 10.06" x 1.73" (482.60 mm x 255.52 mm x 43.92 mm) with painted blue finish.

  • Frequency Range: 0.5 to 18.0 GHz
  • Insertion Loss: 16.0 dB Max - Measured 11.5 dB
  • Isolation: 14 dB Max - Measured 15.95 dB
  • VSWR: 2.0:1 Typ (Input / Output) - Measured 1.67:1
  • Amplitude Balance: ±2.0 dB Max - Measured +1.25 dB / -0.85 dB
  • Phase Balance: ±3º Goal, ±9° Max - Measured +7º / -5º
  • Power Handling:
          Forward: 10 Watt Max
          Reversed: 0.5 Watt Max
  • Impedance: 50 Ω

PMI Model No. PLNA-35-100M18G-P1dB24-120VAC

PMI Model No. PLNA-35-100M18G-P1dB24-120VAC - RF CafePMI Model No. PLNA-35-100M18G-P1dB24-120VAC is a portable amplifier that operates over the 100 MHz to 18.0 GHz frequency range. This model provides 40 dB typical gain with a minimum OP1dB of +24 dBm. This amplifier features an illuminated push button On/Off switch in a small package (3.0" x 3.0" x 1.75") with Type N connectors. Gold plated finish.

  • Frequency Range: 0.01 to 18.0 GHz
  • Gain: 40 dB Typ - Measured 43.03 Max / 38.89 Min
  • Gain Flatness: ±2.0 dB Typ - Measured ±2.03 dB
  • Noise Figure: 3 dB Typ
      Measured: 5.35 dB @ < 0.5 GHz
                        3.62 dB @ > 0.5 GHz 
    OP1dB: +27 dBm Typ, +24 dBm Min - Measured 25.46 dB
  • VSWR In/Out: 2.0:1 Typ. - Measured 1.95:1
  • Maximum RF Input: +10 dBm CW
  • AC Voltage Supply: 110 VAC
  • AC Connector: 3 Pin IEC

About Planar Monolithics Industries (PMI)

Planar Monolithics was founded basically to take advantage of the growing demand in monolithic-based products using the hybrid MIC/MMIC technology innovations that are mushrooming in a big way all over the world. High performance and reliable products can be obtained by using this technology. Planar Monolithics will meet these requirements. Planar Monolithics organization has been setup to design, develop, manufacture, test, and market complex state-of-the-art hybrid RF/microwave and monolithic integrated circuits (MIC/MMIC) and components, and hybrid MIC/MMIC supercomponents and subsystems. Planar Monolithics provides its unique products for applications in space, military, communications, telecommunications, commercial, and consumer electronics systems.


Sebastian Palacio
Director of Sales & Marketing
Principal Applications Engineer
Planar Monolithics Industries, Inc.
7311-F Grove Road
Frederick, Maryland  21704, USA
CAGE Code: 05XQ0
Phone: (301) 662-5019
Cell: (301) 455-9897
E-Mail: spalacio@pmi-rf.com
Website: www.pmi-rf.com



Posted May 22, 2017

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