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40 Meter Mini-MOXON Beam Antenna At W7XA - CADXA Home

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40 Meter Mini-MOXON Beam Antenna At W7XA - CADXA Home

40 Meter Mini-MOXON Beam Antenna Designed, built, and presented by: Al Koblinski W7XA Design goals Some forward gain Good directivity (high F/B and F/S ratios ...

http://cadxa.org/LinkClick.aspx?fileticket=xncaVKN3dNQ%3d&tabid=68&mid=538

Date added: October 29, 2012 - Views: 88

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HELIX ANTENNAS - Chapter 70 Home

... large arrays of helix antennas for radio astronomy “the dimensions of the helix are so non-critical that the helical beam antenna ... V E3NPC Helix Antenna ...

http://qcwa70.org/HELIX%20ANTENNAS.ppt

Date added: October 19, 2011 - Views: 101

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PowerPoint Presentation

P.W. Gorham et al.. TEST BEAM A SLAC Time relative to beam entry Antenna V/Vrms Time relative to beam entry Antenna V/Vrms close to shower maximum shower nearly ...

http://kicp-workshops.uchicago.edu/mw-2010/pdf/7-gorham.ppt

Date added: August 11, 2013 - Views: 2

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Wire Antennas - South Canadian Amateur Radio Society (SCARS ...

The Wonderful World of Antennas. ... Inverted L, V-Beam, Rhombic, Beverage & so on. Antenna Characteristics The ratio at any given point on the antenna of Voltage to ...

http://w5nor.org/wa.ppt

Date added: June 25, 2013 - Views: 4

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Lecture 10: Antennas - Lamar University - Welcome to ...

Antenna parameters 5. Effective aperture. ... Introducing the power radiation pattern as The beam solid angle of the antenna is (10.28.1) (10.28.2) (10.28.3) ...

http://www.ee.lamar.edu/gleb/em/Lecture%2010%20-%20Antennas.ppt

Date added: November 18, 2011 - Views: 143

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Small Antennas - Navy Mars HP Frames

... SWL http://www.antennex.com/hws/ws0302/varcap.html Capacitor Solution #2 From ARRL Antenna Book ... 300 V /mil) 16 to 542 pF ... air: -20 to –35 dB vs. beam ...

http://www.navymars.org/northeast/reg1/sne/small_hf_antennas.ppt

Date added: October 12, 2011 - Views: 48

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MICROWAVE ANTENNA - CERMIN DIRI HIASI PERIBADI...

MICROWAVE ANTENNA. Definition. A conductor or group of conductors used either for radiating electromagnetic energy into space or for collecting it from space.

http://nurhidayahmoktar.weebly.com/uploads/6/4/8/7/6487407/chapter_5_microwave_antenna.pptx

Date added: May 2, 2013 - Views: 85

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Antennas - University of Kansas

There are both art and science aspects to antennas. Antenna arrays enable ... 6-element array Half-wave dipole radiators Antenna arrays Beam steering effects ...

http://people.eecs.ku.edu/~callen/823/823_Antennas-F14.ppt

Date added: September 30, 2014 - Views: 2

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The Expanded Very Large Array - NRAO: Socorro, New Mexico

Antennas in Radio Astronomy Peter Napier Outline Interferometer block diagram Antenna fundamentals Types of antennas Antenna performance parameters Receivers E.g ...

http://www.aoc.nrao.edu/events/synthesis/2004/presentations/NapierAntennas.ppt

Date added: November 18, 2011 - Views: 42

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Amateur Radio Technician Class Element 2 Course Presentation

An antenna built from aluminum I-beams An omnidirectional antenna invented by Clarence Beam An antenna that concentrates signals in one direction An antenna that ...

http://www.w0wtn.org/downloads/class_material/tech/w5yi/(18)%20Antennas%20(13)%2B(15)%3D(28).ppt

Date added: May 7, 2013 - Views: 15

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Slide 1

Antenna Pattern. Antenna pattern shows the distribution of transmitted power with angle for axis of beam (where gain is maximum) - see Fig 10.10

http://reu.wireless.vt.edu/powerpoint/Antennas_2013_v01-Dr_Pratt.pptx

Date added: September 15, 2013 - Views: 7

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HANDBOOK ON GREEN INFORMATION AND COMMUNICATION SYSTEMS

... antennas * MULTIPLE ANTENNA SYSTEM Beam-Forming Delay-Sum Beam-Former A Simple Delay-Sum Beam-Former * MULTIPLE ANTENNA SYSTEM Beam-Forming V-BLAST MIMO ...

http://booksite.elsevier.com/9780124158443/downloads/Chapter_15_SlidesGICS119.ppt

Date added: April 26, 2013 - Views: 22

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Antennas Demystified - Home Page - MicroHAMS.com

Antennas Demystified Scott Honaker N7WLO Importance of Antennas Antennas are as important as the radio A $5000 TV with rabbit ears will have a lousy picture Antennas ...

http://www.microhams.com/binfile/talks/Antennas%20Demystified.ppt

Date added: September 10, 2011 - Views: 68

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Introduction to antennas - APEX - Atacama Pathfinder EXperiment

Introduction to antennas Michel Anciaux / APEX November 2004 What is an antenna? Region of transition between guided and free space propagation Concentrates incoming ...

http://www.apex-telescope.org/training/2005-02-04/Introduction_to_antennas.ppt

Date added: November 14, 2011 - Views: 379

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5 Element 20m Wire Beam

5 Element 20m Wire Beam at WB6DCO Construction of an East facing 20m beam made from wires supported on both ends by fiberglass poles. August 2009

http://71.165.227.225/hampages/eznec/astrobeam4.ppt

Date added: May 25, 2014 - Views: 2

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Satellite Communications A - Electronic Engineering ...

Satellite Communications A Part 2 Antenna Basics-Professor Barry G Evans-Antenna Radiation Pattern Antenna radiation pattern in polar coordinates Near Field – Far ...

http://info.ee.surrey.ac.uk/Teaching/Courses/eem.scma/satcommsa2004part2.ppt

Date added: November 1, 2013 - Views: 39

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Smart antennas for Mobile Ad-hoc networks

Smart antennas and MAC protocols ... to provide control of space by providing virtual channels in an angle domain Directional Antennas Sectorised antenna ... The beam ...

http://www.cse.buffalo.edu/~qiao/cse620/fall04/Smartantennas.ppt

Date added: October 7, 2011 - Views: 111

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EE608 Adaptive Signal Processing Course Project Adaptive Beam ...

Title: EE608 Adaptive Signal Processing Course Project Adaptive Beam Forming using Antenna Array Author: V B BHEDARU Last modified by: V B BHEDARU

http://www.ee.iitb.ac.in/~prakshep/ASP/Project/BF_ASP_Final.ppt

Date added: September 21, 2013 - Views: 6

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No Slide Title

Antenna Fundamentals ... Above a Perfectly Conducting Surface Love them Hate them Baluns Long Wires V Beams Rhombics Creating a V Beam A Rhombic – Two V Beams Back ...

http://w8zpf.cboh.org/talks/2012-12+K8LJ+AntennaFundamentals.pps

Date added: August 29, 2014 - Views: 1

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MAC Protocols for Directional Antenna: A Survey

Title: MAC Protocols for Directional Antenna: A Survey Author: Microsoft Corporation Last modified by: 조성래 Created Date: 10/5/2006 4:04:58 AM

https://mentor.ieee.org/802.11/dcn/09/11-09-0796-00-00ad-contention-based-directional-mac-protocols-a-survey.ppt

Date added: May 8, 2012 - Views: 26

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Directional Antennas in Mobile Ad Hoc Networks:

Directional Antennas in Mobile Ad Hoc Networks: MAC and Routing Issues Prepared by: Rima Khalaf Behnam Rezaei Based on the work of: N. Vaidya, Y.b. Ko, and V ...

http://nesl.ee.ucla.edu/courses/ee206a/2002s/student_presentations/SP06_RimaBenham.ppt

Date added: July 8, 2012 - Views: 3

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Satellite Orbits – 1 - Welcome to the GMU ECE Department ...

TCOM 551 Fall 2009 Lectures number 6 and 7 * Antenna Beamwidth – 2D Another (more ... Individual beams developed by the multi-beam antenna Repeat of ...

http://ece.gmu.edu/coursewebpages/TCOM/TCOM707/TCOM707_Lecture1.ppt

Date added: May 3, 2013 - Views: 48

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Antenna Cost Modeling For Large Arrays - Cornell University

Antenna Cost Modeling For Large ... mass = k1 V 2/3 f 1 ... including substantial DSP with analog processing Many channels per chip or module Limitations Multi-beam ...

http://www.astro.cornell.edu/SKATDP/files/Meet_2008Mar_AWG/AWG_Mar2008_Talk13_d%27Addario.ppt

Date added: November 27, 2014 - Views: 1

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Antenna Fundamentals with LVDAM-ANT System

However, for an antenna whose radiation efficiency is less than 1 (100%), there is a difference. * a Antenna beam solid angle (steradians) ...

http://hijjawi.yu.edu.jo/Database/Departments/cme/Labs/447A/Antenna%20fundementals%20with%20LVDAM-ANT%20system.ppt

Date added: December 20, 2013 - Views: 13

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CM Matlab R0.85 Support Doc - IEEE Standards Association ...

MATLAB codes distributed in IEEE802.15.4a was modified This M-file are composed of six ... or select your own beamwidth (2)? 2 Input Antenna Beam Width: [1 to ...

https://mentor.ieee.org/802.15/file/07/15-07-0559-03-003c-cm-matlab-release-1-1-support-document.ppt

Date added: May 8, 2012 - Views: 93

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Adaptive Digital Beam-Forming for HRWS SAR

The radiometric resolution is improved through a larger multi-channel antenna in elevation where a digital beam.forming technique SCORE allows to combine the ...

http://www.grss-ieee.org/wp-content/uploads/2011/07/4_IGARSS11_HRWS.ppt

Date added: March 21, 2014 - Views: 6

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High Brightness Negative Ion Sources with High Emission ...

V. Dudnikov, INP, 1976 NI Beam intensity as function of discharge current in the Semiplanotron SPS Design of ... With replacing of the ordinary helix antenna shown ...

http://beamdocs.fnal.gov/AD/DocDB/0020/002062/001/HCDHBSPS2.ppt

Date added: June 13, 2012 - Views: 33

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SATELLITE LINKS - ImageEvent

actual values range from 20% (-4.4db), to 75% (+1.3db) to achieve the desired gain in multi-beam service, the antenna diameter is slightly oversized.

http://photos.imageevent.com/qdf_files/technicalgoodies/training/SATCOM%20Link%20Budgeting.ppt

Date added: May 10, 2012 - Views: 38

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Frequency Allocation in SDMA Satellite Communications System

Hybrid Discrete-Continuous Optimization for the Frequency Assignment Problem in Satellite Communications System Kata KIATMANAROJ, Christian ARTIGUES, Laurent HOUSSIN ...

http://www.laas.fr/files/MOGISA/2012-Conf/presentation-kata-incom2012.pps

Date added: August 16, 2013 - Views: 6

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Microwave Distance Sensor - ECE7750 Distributed Control Systems

Microwave Distance Sensor Randy Shirts ECE 5320 Mechatronics Assignment #1 Outline Reference list Major Applications Basic principle Typical configuration ...

http://mechatronics.ece.usu.edu/ece5320/Schedule/hw01-2006/Randy_Shirts_Microwave%20Distance%20Sensor.ppt

Date added: October 12, 2011 - Views: 67

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PowerPoint Presentation

Base Station Antenna Considerations in Wireless Network Deployment By David Shani V.P. Int’ Sales and Marketing With MTI Wireless Edge The Motivation Improving the ...

http://www.mtiwe.com/_Uploads/dbsAttachedFiles/BTS_Antenna_Consideration.pps

Date added: September 19, 2013 - Views: 8

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BIG GUNS

G0EVY crane mounted Beam VE3EJ ... The boom is two 60 foot towers welded togtherr and Crane can drop beam in 3.5 mins. Footprint of the antenna covers 1000 sq. meters ...

http://www.angelsnz.net/ZL3SV/Library/BIG-GUNS%5B1%5D.ppt

Date added: October 23, 2011 - Views: 40

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Amateur Extra License Class - Wabash Valley Amateur Radio Asso

VBeam. 2 long-wires fed 180° out of phase. 2 major ... Which of the following instruments would be best for measuring the SWR of a beam antenna? A spectrum ...

http://www.w9uuu.org/documents/extra_class/Amateur_Extra_Chapter_9.ppsx

Date added: May 4, 2013 - Views: 24

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Slide 1

This poster concerns the on-orbit validation of the antenna beam pointing and corresponding instantaneous field of view (IFOV) earth location for the CONAE Microwave ...

http://depts.washington.edu/uwconf/aquarius_sacd/Clymer_MWR_poster.pptx

Date added: December 3, 2014 - Views: 1

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HF-Radio.ppt - Department of Electrical, Computer, and ...

... inverted V and sloper. “Inverted V” Sloper Antennas The tri-band Yagi or beam antenna is popular among a lot of HF operators.

http://www.ecse.rpi.edu/courses/CStudio/ham_radio_docs/HF-Radio.ppt

Date added: May 3, 2013 - Views: 16

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Antennas

Antennas A good antenna works A bad antenna is a waste of time & money Antenna systems can be very inexpensive and simple They can also be very, very expensive

http://www.mycollegebag.in/uploads/9/2/0/3/9203182/lesson-6_antenna.ppt

Date added: August 1, 2013 - Views: 3

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Slide 1

Collapsible Beam for 6 m ... NW3Z, and James L. Breakall, WA3FET, “A 40m V-Yagi”, in International Antenna Collection, RSGB/ARRL, 2003, (and in QST,May 1988) [2] ...

http://www.qsl.net/ve3sma/50MHzCollapsibleBeam.ppt

Date added: July 25, 2013 - Views: 4

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Antennas - Northern Illinois University - Your Future, Our Focus

This is an antenna. ... and frequency. v = lf Solve ... Tahoma Symbol Beam Microsoft Equation 3.0 Antennas Free Charge Accelerating Charge ...

http://www.niu.edu/~mfortner/PHYS211/Unit%207%20EM%20Waves/p211_07b.ppt

Date added: December 26, 2012 - Views: 20

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PowerPoint Presentation

Stanford Linear Accelerator Center 6 •1017 eV Time relative to beam entry Antenna V ... SLAC MEASUREMENTS evidence of full coherence FROM TEST BEAM ...

http://kicp-workshops.uchicago.edu/mw-2010/pdf/4-gorham.ppt

Date added: May 23, 2013 - Views: 3

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Wide field imaging - Indiana University

Introduction to Interferometry Lo and Cornwell Copyright, 1996 © Dale Carnegie & Associates, Inc.

http://www.astro.indiana.edu/catyp/radio/Indiana.interferometry.ppt

Date added: September 24, 2014 - Views: 1

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Faster, Better, Cheaper - Northwestern University

... Increased efficiency Adaptability Robust to space environment Faster, Better, Cheaper ... antenna can steer beam to focus reception or transmission Adjusting ...

http://clifton.mech.northwestern.edu/~me381/project/02fall/NANOSATELLITE.ppt

Date added: May 11, 2012 - Views: 59

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PowerPoint Presentation

LEO Satellite Antenna Concept (7 Beam) Single antenna for transmit and receive. TDMA up- and down-link. Array of helical elements. 9 dB gain. 40° beamwidth. downlink.

http://commsystec.com/images/UHF%20Final%20Briefing%20Milestone.pptx

Date added: November 25, 2012 - Views: 28

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PowerPoint Presentation

Planar Antenna-Coupled Hot ... Cu absorber, 23 nm thick, V = 6.2 ( m ... Build a double slot antenna scale model and conduct reflection and beam pattern ...

http://hibp.ecse.rpi.edu/~connor/education/Antennas/ASC_poster02_small.ppt

Date added: May 25, 2013 - Views: 28

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Systematic Product Analysis - Home - Earth Online - ESA

... H/V, Gain/Phase History ... > 1 LSB error > 2 LSB error > 3 LSB error External Characterisation Antenna B/F Test Results Antenna Gain Test Results Beam Antenna ...

https://earth.esa.int/workshops/validation_12_02/asar/systematic_prod_analysis.ppt

Date added: May 2, 2013 - Views: 14

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Wave incidence - UPRM

Wave Incidence [Chapter 10 cont, Sadiku] Dr. Sandra Cruz-Pol Electrical and Computer Engineering Dept. UPR-Mayagüez

http://ece.uprm.edu/~pol/ppt/2WaveIncidence.ppt

Date added: May 7, 2013 - Views: 6

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Substrate-guided wave optical true-time delay feeding network ...

Title: Substrate-guided wave optical true-time delay feeding network for phase-array antenna steering Author: Ray Collins Last modified by: Ray Chen

http://depts.washington.edu/eooptic/presentations/files/AIAA_chen-phased-array-ppt.ppt

Date added: September 18, 2012 - Views: 16

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slides - Wiley: Home

... because of its excellent ability to produce a pencil beam ... scanned beam. It consists of more than one antenna element and these radiating ... slides Subject ...

http://www.wiley.com/legacy/wileychi/huang_antennas/supp/Huang_Slides_5V08.ppt

Date added: May 2, 2013 - Views: 70

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Mosaicing - Australia Telescope National Facility

Mosaicing Naomi McClure-Griffiths ATNF-CSIRO [email protected] 2003 ATNF Synthesis Imaging Workshop ...

http://www.atnf.csiro.au/whats_on/workshops/synthesis2003/talks/mosaic.ppt

Date added: December 27, 2013 - Views: 7

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Adaptive Digital Beam-Forming for HRWS SAR

Title: Adaptive Digital Beam-Forming for HRWS SAR Author: EDUARDO MAKHOUL VARONA Last modified by: AVW-TELAV Created Date: 10/12/2005 12:48:04 PM Document ...

http://www.grss-ieee.org/wp-content/uploads/2011/07/2-Bordoni_IGARSS11_APC.ppt

Date added: February 15, 2014 - Views: 6