Geoff Schulteis

Don't mix this signal: Buy a Mixed Signal Oscilloscope from Keysight Technologies. Capture & isolate elusive glitches & anomalies where it isn't possible to solve elsewhere. 🛒: https://ow.ly/x2BK50RuQSY #Oscilloscopes #Solutions

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In this paper, the #time-#modulated #array is combined with the relatively recent #coding-#metasurface #theory to introduce #time-#coding #metasurface #antenna. This innovative antenna design facilitates flexible spatial modulation of #electromagnetic (#EM) wave without using complicated feeding network and traditional phase shifter. Hence, it enables the generation of #multiple #concurrent but #independent #directive #high #gain #beams to cover a predefined angular range, unlike the conventional array antenna which has their single directive beam which covers only one user at cellular communication. The paper focuses on the theoretical analysis of a time-coding metasurface antenna designed with embedded 2-bit PIN diodes, which is successfully fabricated, also. Applying various time sequences, the proposed array showcases the ability to steer beams at the center frequency and concurrently generate multiple beams at different frequencies, each with specific radiation angles. The flexibility and capability of the proposed metasurface antenna candidates it for different communication applications. ---- Morteza Nadi, Ahmad Cheldavi, Seyed Hassan Sedighy More details can be found at this link: https://lnkd.in/eV8HbFmr

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Great article in Signal Integrity Journal with Benjamin Dannan on flawed capacitor models. See the link in his post below! 🤓

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In this work, a dual-band linear polarized C/X conformal #shared #aperture #antenna (#SAA) for spaceborne SAR applications is presented. The proposed single layer SAA is designed with a square-shaped patch in linear polarization and arranged as four elements ( 2×2 ) array with corporate feeding to allow for efficient signal transmission. The design of that operates at C-band (5.35 GHz) and X-band (9.65 GHz). Most spaceborne applications, such satellite radar and weather forecasting, employ the C-band antenna. On the other hand, X-band antennas are used for surveillance, reconnaissance, air traffic control, and weather monitoring. A prototype is built, and its s-parameters are tested to confirm the antenna. ---- Bala Ankaiah Nunna, Dr. VENKATA KISHORE KOTHAPUDI More details can be found at this link: https://lnkd.in/d8A3477R

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In this work, a dual-band linear polarized C/X conformal #shared #aperture #antenna (#SAA) for spaceborne SAR applications is presented. The proposed single layer SAA is designed with a square-shaped patch in linear polarization and arranged as four elements ( 2×2 ) array with corporate feeding to allow for efficient signal transmission. The design of that operates at C-band (5.35 GHz) and X-band (9.65 GHz). Most spaceborne applications, such satellite radar and weather forecasting, employ the C-band antenna. On the other hand, X-band antennas are used for surveillance, reconnaissance, air traffic control, and weather monitoring. A prototype is built, and its s-parameters are tested to confirm the antenna. With the suggested design, the authors were able to obtain a bandwidth of 65 MHz for C-band and 354 MHz for X-band, as well as gains of 13.2 dBi for the C-band and 10.6 dBi for the X-band, and isolation of more than 40 dB. The total size of the SAA size is 130×80×0.8 mm. ---- Bala Ankaiah Nunna, Dr. VENKATA KISHORE KOTHAPUDI More details can be found at this link: https://lnkd.in/d8A3477R

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Featured on everything RF... The P4T-100M18G-80-T-515-SFF-4W-IND from Quantic PMI (Planar Monolithics) is an Absorptive SP4T Switch that operates from 0.1 to 18 GHz. It has a switching speed of <200 ns and provides an isolation of 80 dB. This switch can handle an input power of up to 36 dBm and has an insertion loss of 4.5 dB. It is available in a radial module that measures 1.25" (Dia.) x 0.4" with SMA (F) removable connectors and requires a DC supply of +5 and -15 V. https://lnkd.in/eCXcXbvG #rf #rfengineering #microwave

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In Part 3 of this series, we’ll dive into beamwidth, combining element and array factors, and antenna plots. https://bit.ly/4buSVzG

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Learn how to configure colors, optimize your workspace, and define shortcuts to customize your AWR RF simulation environment: https://ow.ly/VPnY50REVpz

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High-speed 3D measurement is receiving increasing attention, but it’s difficult to achieve high efficiency, robustness and reconstructing ratio: https://ow.ly/NHYz50S2tiN This Optics Express [#OPG_OpEx] study proposes a dynamic phase-differencing profilometry to directly resolve the phase difference between the object on the reference plane and the reference plane and improve computational efficiency. The research team’s method also achieves high algorithmic robustness and reconstruction ratio with applications in high-speed 3D measurement. Written by: Zhimi Wei, Yiping Cao, Haitao Wu, Cai Xu, Guoshui Ruan, Fang Wu, and Chengmeng Li #3D #3Dmeasurement #physics #scienceandtechnology

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The new PXIe-5842 Vector Signal Transceiver (VST) is capable of RF measurements from 30 MHz to 26.5/54 GHz. Come learn on Wednesday, May 8th how to get from RF to bits using this highly versatile NI platform. https://bit.ly/3WiDwOs

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Featured in the April edition of Microwave Journal... Quantic PMI (Planar Monolithics) Model No. PE2-30-20G20R6G-3R0-10-12-SFF is a 20.0 to 26.5 GHz, Low Noise Amplifier. This amplifier offers a gain of +30 dB typical with a gain Flatness of ±1.5 dB maximum; a noise figure of 2.5 dB typical – 3 dB maximum; a OP1dB +10 dBm Min, measured @ +10.7 dBm; and VSWR of 2.0:1. Supplied in our standard PE2 housing that can be used as a SMA connectorized or a surface mount component. https://lnkd.in/ep22pkdH #rf #rfengineering #microwave

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💡Article spotlight: A Computer Controlled Phase and Magnitude Self-Calibration Methodology for Phased Array Antennas This paper addresses the problem of quickly and accurately providing the correct magnitude and phase signal feeds to active antenna arrays. The authors develop and demonstrate a computer-controlled circuit-based calibration system that produces optimized phase and magnitude imbalances of 0.1 dB and 3 degrees respectively. By building the calibration circuitry directly into the array feed the authors believe they have demonstrated the first built-in automatic calibration system for phased array systems. This paper is part of our April 2024 issue. 📎 Read the full article here: https://lnkd.in/g7rY3Hv2 🌐 Topics covered in this article: Phased arrays, Calibration, Antenna arrays, Radio frequency, Digital control, Probes, Phase measurement 📝 Authors: Zain Shafiq, Dimitris E. A. Symon K. Podilchak

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Featured in everything RF... LM-150M5G-200CW-2KWPK-AGAL-ROHS from Quantic PMI (Planar Monolithics) is a High-Power Limiter that operates from 0.15 to 5 GHz. It delivers a P1dB of more than +6 dBm and has an insertion loss of less than 2.00 dB. This power limiter can handle an input CW power of 200 W (+53 dBm), a peak power of 2 kW (+63 dBm) and has an input/output VSWR of less than 1.70:1. It has a flat leakage of +20 dBm and a recovery time of less than 100 ns. This module is available in a package that measures 1.00 x 0.68 x 0.35 inches and has SMA female connectors for input/output. RoHS compliant! https://lnkd.in/eMNH5yyX #RF #rfengineering #microwave

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Highlighted in everything RF... The LM-10M2D5G-100CW-1KWP-SFF-ROHS from Quantic PMI (Planar Monolithics) is a Power Limiter that operates from 0.01 to 2.5 GHz. This limiter can handle 100 W CW and 1 kW peak (1% duty cycle, 1 µs maximum pulse width) input power and provides a maximum leakage of +14 dBm CW input. It has a low insertion loss of 0.5 dB and a recovery time of 2 µs typical. RoHS compliant. https://lnkd.in/evVVc4SA #RF #RFengineering #microwave

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Aerospace designers rely on Rogers' high-frequency laminates to enhance antenna system performance. Explore solutions for antennas, feed networks, phased arrays, and radiating elements. #Rogers #HighFrequencyLaminates #AntennaSystems

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🚀🛰️Learn about the test equipment & capabilities needed to keep space-based systems flying. Read our blog post on Microwave Product Digest: http://ow.ly/Cr5p50JBWfM #SpaceEquipment #SpaceIndustry

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1500mHz RF power amplifier GAN module with scan source for fpv Autel Dji device countermeasure drone

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