phase array

2 Stack Match Yagi Antenna - Solves antenna matching problem with two phased antennas. Stacked rotary beams are popular. However, connecting two 50 Ohm antennas together presents some problems.

A 6 element OWA Yagi for 28MHz Priority listing - This is a high-gain, wideband OWA Optimised Wideband Array Yagi which covers the 10m band with an SWR of less than1.1:1 from 28-28.900MHz.

7 elements OWA Yagi for 20 meters band - Optimised Wideband Array with low SWR across the whole of 20m with excellent gain and F/B. European and USA sizes

Multi-loop Rectangles and Compact Arrays - VHF antenna array that packs a lot of gain into a small volume article by N2DT

Superphaser-2 Phasing Unit - The Superphaser-2 is an antenna phasing unit based on the PSA-A Phase Shift Amplifier module

G3WZT Phased Verticals - Vertical phased antenna systems plans by G3WZT

Phased Array Adjustment - KM5KG article presents a lumped-parameter tee-network model of the coupling between radiating elements in a phased array in order to provide a physical and intuitive understanding of phased array operation and adjustment interactions

Bobtail dipole - Bobtails are vertical arrays that look like the letter "E" turned 90° clockwise onto its tails. They have 3 quarter wave vertical elements and are one wavelength long. The Half Square is a shortened Bobtail- it has 2 quarter wave vertical elements and is a half wave long.

160m-6m Directional Array - Stealth 19 element directional antenna array system for 160m to 6m

A new stacked multiband dipole array - A new multiband version of the lazy-h for 10, 15 and 20m. No tuner needed.

Baluns on Log Periodic Antennas - Some antenna manufacturers place baluns at the incorrect location in LPDA arrays, or tell you to route the cable incorrectly. This can cause substantial RFI and all sorts of weird problems like RF into house wiring.

The Neumann-Antenne - A stacked multiband dipole array for 10, 15 and 20 meters

The OWA Yagi Priority listing - An introduction to the OWA (optimised Wideband Array) Yagi antenna

Patch Antenna Array - The Patch Antenna Array was constructed and used for various satellite up and down links at my previous residence in Melbourne, Victoria from 2003 - 2007

Smart Antennas Tutorial - Smart antennas or the adaptive antenna array and smart antenna technology used with SDR, cognitive radio, MIMO, and other new technologies.

Calculating wind loads - Mechanical Notes from K7NV

UHF VHF Folded Dipole - Dual band 2 m and 70 cm folded colinear aerial array project by G2BCX

Antenna performance table by VE7BQH - Performance chart of VHF antennas in a stacked array

AIM4170B by W5BIG - Antenna Analyzer AIM4170 by W5BIG from Array Solutions

HI-Z Antennas - HF receiving systems and components, band pass filters, array controllers, HI-Z pre amplifiers

Antenna Engineering - Antenna Engineering specialise in producing a range of high quality aluminium HF verticals ranging from mono band single element verticals to multi element phased arrays.

MegaPhase - MegaPhase designs, manufactures and sells coaxial cable assemblies to OEMs building advanced microwave and optical electronic systems, products include test cables, test adapters, flexible and semi-rigid cables used to connect system components inside a system, and coaxial connectors.

Anaren - Manufacturer for splitter and combiners, baluns, directional couplers hybrid couplers, modulators, mixers, phase discriminators, antenna feeds.

Filter Concepts - Custom EMI Filters, AC DC Three phase filters by Filter Concepts Inc.

Cute CW - Most morse code (CW) training requires you to learn everything at once without a training process. This application changes that and separates training into phases.