Blog

DOD wants drones to deliver blood


DOD wants drones to deliver blood on the battlefield BY ADAM MAZMANIAN Battlefield drones typically deliver weapons or spy out enemy positions. Now the U.S. military is looking for ideas on how to deliver blood and medical products to remote locations to treat wounded troops on the spot. The specs of the solicitation from the Defense Innovation Unit Experimental — the ability to deliver a 5-pound package over 100 kilometers in “austere environments” — strongly suggest that they’re looking at an unmanned aerial vehicle system that supports refrigeration or other means of temperature control. “These deliveries, ideally automated, will provide […]

READ MORE

Wireless Bandpass Filters – Metamaterials


MATERIALS Wireless Bandpass Filters Build on Metamaterials These second- and third-order bandpass filters leverage metamaterial resonators for low passband insertion loss and high out-of-band rejection for wireless applications at 2.4 GHz. Ahmed A. Ibrahim, Mahmoud A. Abdalla, Adel B. Abdel-Rahman 1 | May 18, 2018 Download this article in PDF format. Microwave bandpass filters (BPFs) are essential for maintaining separate channels in wireless communications systems. As such systems become more compact, BPFs must meet more demanding requirements for smaller size, lower insertion loss, higher out-of-band rejection (selectivity), and lower cost. Several techniques are used to design microwave BPFs,1-4 although the authors have developed an approach […]

READ MORE

Coaxial and Waveguide Attenuators up to 170 GHz


HASCO carries a wide variety of Coaxial and Waveguide Attenuators   Coaxial Attenuators SMA – 3 GHz to 26 GHz (2, 5 & 10 Watt) Type N – 18 GHz (5 & 10 Watt) 2.92mm – 40 GHz Hz (.5 & 2 Watt) 2.4mm – 50 GHz (1 and 2 Watt) 1.85mm – 65 GHz (1 Watt) Waveguide Attenuators WR-06 – 110 GHz to 170 GHz WR-08 – 90 GHz to 140 GHz WR-10 – 75 GHz to 110 GHz WR-12 – 60 GHz to 90 GHz WR-15 – 50 GHz to 75 GHz WR-19 – 40 GHz to 60 […]

READ MORE

Transparentize Connections for 5G Testing


Transparentize Connections for 5G and WiGig Testing As applications reach higher frequencies, the right tools are needed to develop effective connector interfaces. Bill Rosas Download this article in PDF format. Critical to many new projects is a transparent interface to the board—one that you do not even notice is there. This connector-to-board interface is referred to as the board “launch,” where the RF energy transitions from the connector to the board. Figure 1 shows a typical design with 2.92-mm interface 40-GHz connectors on the edge of the board. 1. Shown is a 1:16 Wilkinson divider design that utilizes 2.92-mm connectors. For designers […]

READ MORE

Sikorsky completes test program


Sikorsky completes test program, delivers first rugged CH-53 King Stallion heavy-lift helicopter to U.S. Marine Corps EST PALM BEACH, Fla. The U.S. Marine Corps can start replacing its aging CH-53E Super Stallion military helicopterfleet with new CH-53 King Stallion rotorcraft from Sikorsky, a Lockheed Martin company (NYSE:LMT), which has delivered the first of an expected 200 rotary-wing aircraft for the Marine Corps’ fleet. The CH-53E first flew in 1974 and entered service with the Marine Corps in 1981. The CH-53K is the new build replacement for the Super Stallion helicopter. The rugged CH-53K helicopter is an all new aircraft with a modern intelligent design intended to […]

READ MORE

HASCO RF and Millimeter Wave Terminations


HASCO offers a large selection of RF and Millimeter Wave terminations up to 170 GHz Understanding Terminations or Loads RF loads or terminations are indispensable components in many RF and Millimeter Wave systems where signal reflection from unused ports can potentially damage the device or reduce the signal integrity. By using a termination on an unused port with a matched load (dummy load), the incident energy will be absorbed with minimal reflection. These termination components are commonly used to terminate devices such as couplers, circulators, and switches. They are also widely used in measurement systems to ensure accurate results.

READ MORE

GaN-on-SiC RF and microwave transistors


GaN-on-SiC RF and microwave transistors for S-band radar applications introduced by Integra Technologies EL SEGUNDO, Calif. – Integra Technologies Inc. in El Segundo, Calif., is introducing a pair of 135- and a 130-Watt gallium arsenide-on-silicon-carbide (GaN-on-SiC) RF and microwave transistors for S-band radar applications. The IGT2731M130 is a 50-Ohm matched high-power GaN high-electron-mobility transistor (HEMT), supplying a minimum of 130 Watts of peak pulsed power, a gain of 13.5 dB and a drain efficiency of 55 percent, at pulse conditions of 300 microseconds at 10 percent duty cycle. It operates at the instantaneous operating frequency range of 2.7 to 3.1 GHz, and is a depletion mode […]

READ MORE

Air Force invests in origami antenna technology


Air Force invests $4.8M in FIU origami antenna technology for aircraft, UAS, satellites MIAMI. The U.S. Air Force is investing nearly $5 million in origami, or foldable and reconfigurable, antennas to enable new aerospace and tactical systems for communication and sensing in aircraft and satellite applications. Inspired by the Japanese art of paper folding, origami electromagnetic systems include: reconfigurable, foldable, and deployable multifunctional antennas and antenna arrays, adaptable “smart skins” for communication and sensing, and compact/collapsible wearable antennas. Florida International University (FIU) won a $4.8 million grant from the Air Force Office of Scientific Research at Wright-Patterson Air Force Base in Ohio to […]

READ MORE

HASCO Waveguide to Coax Adapters


HASCO Waveguide to Coax Adapters offer low-loss and low VSWR characteristics.   Waveguide to Coax Adapters allow for an efficient transition between the Waveguide and the coaxial connector. HASCO offers two mechanical configurations, a right angle and an end launch (in-line) for various Waveguide bands.                

READ MORE