Suffolk, United Kingdom
Antennas Ltd trading as
Cobham Antenna Systems, Microwave Antennas
The same people, the same location, the same
|Specialising in the design and development of high gain, printed circuit arrays, ultra wide-band
directional antennas, multi-octave bicones and high gain collinear omni-directional antennas.
Large catalogue of antenna designs. Specialist development projects from 250 MHz to 40 GHz.
Communication industry awareness and expertise in antenna physics ensure customer satisfaction.
- Product & Service Offerings -
• Cellular • PMR
• Tetra Broadcast • WiMAX/LTE RFID
DEFENCE: • Tactical Comms
•Link16 Radar • Missile
• IED CM Unmanned Systems
• Ground Based Mobile Satcoms
• EW • COFDM • Bodyworn
• Covert •Tracking Surveillance
• Counter Terror Cellular DAS
2.4GHz Broadband Helical Antenna
instructions on making a broadband helical antenna for 2.4GHz use, by Jason Hecker.
Collinear Antenna for 802.11 Applications | nodomainname.co.uk/Omnicolinear/2-4collinear.htm
By Brian Oblivion and Capt.Kaboom modified by Richard A
802.11b Homebrew WiFi Antenna
Shootout | turnpoint.net/wireless/has.html
By Gregory Rehm.
Antenna Links | ac6v.com/antprojects.htm
Numerous links for antenna theory & basics.
From N6CA, ham-radio.com.
Application, and Performance | linxtechnologies.com/documents/AN-00500.pdf
Application note from Linx Technologies.
Antenna Design Freeware Page
Antenna Design Tutorial
Application note from Micrel, by Tom Yestrebsky.
Antenna Diplexer |
Overview, summary, tutorial about the basics of an antenna diplexer or RF
diplexer used for purposes including enabling a single RF antenna to be used by multiple transmitters.
Directivity and Gain |
Overview, summary, tutorial about the basics of RF antenna directivity
9aerial directivity) and gain including isotropic radiators, polar diagrams and antenna dBi figures and
antenna dBd figures. From radioelectronics.com.
Antenna Elmer |
Information about wire antennas as well as directional beams, from The Elmer HAMlet.
Antenna Feed Impedance |
Overview, summary, tutorial about RF antenna or aerial feed impedance and
the importance of matching RF antennas to feeders. Radiation resistance, loss resistance, and efficiency
are also detailed. From radioelectronics.com.
Antenna Polarization Control
By Seavey Engineering Associates.
Antenna Polarisation or Polarization |
Overview, summary, tutorial about RF antenna or aerial
polarisation and the effect polarization has on RF antennas and radio communications. From
Resonance and Bandwidth | radio-electronics.com/info/antennas/basics/resonance.php
Overview, summary, tutorial about antenna or aerial resonance and badwidth
and the impact of RF antenna resonance and bandwidth on radio communication systems. From
Links to antenna
design software Compiled By AC6V.
ANTENNAS: Some Rules of
Thumb for Beginners |amqrp.org/projects/BeginnerAnts/bgnsant.html Guidelines by James R. Duffey KK6MC/5.
A source of knowledge for
learning about and understanding antennas. The goal is to present a comprehensive tutorial on antennas.
This website will strive to make antennas understandable, without unnecessary complexity.
antenneX | antennex.com
Provides a central place for everyone to
readily discuss their experiences with problems and/or successes in this field of radio signals.
Automated Antenna Design
| ti.arc.nasa.gov/m/pub/1145h/1145 (Globus).pdf
antenna technology from NASA.
of Patch Antennas
Antenna application notes from Orban Microwave Products.
Tel: (800) 736-6677
|NOTICE: Antenna Factor has been combined with the
|Antenna Factor is a world leader in cost-effective antennas. Standard and custom products are available
to support a wide variety of OEM applications. Our antennas are designed to offer maximum performance at a cost-effective
|Antenna Products Include
- PW, CW, HW, RH, HD, RAH, RCR, RCS, RCL, LP, RA, PMA, PMB, PMC
Dipole - HWR, HW, RCL, RCT, PML, RAF, MHW, HDP, VDP, DSK, DBD
Embeddable - Chip, SP, JJB, HE Series
- JJB, HE, SP, DSK, DBD,
HDP, VDP, RMT, RMS, Chip, "Ant Skins" covers
Dual-Band Hole-Mount - DBD, RMS, RMT Series
Magnetic Base - Allow for semi-permanent mounting on metal surfaces
- DBD, UC, ST, SE, PS Series
- Yagi & Corner Style
- Tap into our expertise
Systems - Kits for testing
Modeling Using Micro-Stripes | microstripes.com/e-news/articles/bluetooth.htm
By David Johns Scott Leslie, GE Plastics.
Waves and Antenna Basics |
An overview, summary, tutorial about the basics of electromagnetic waves
and the way in which they affect RF antenna and RF antenna design. From radioelectronics.com.
919-876-6220 | Raleigh, NC
Develops unique form, fit and function antennas for unique applications and requirements.
Very simply, we design and manufacture antennas unlike any other antennas in the world. Custom designs
How To Build A Tin Can
Waveguide WiFi Antenna | turnpoint.net/wireless/cantennahowto.html
For 802.11(b or g) Wireless Networks or other 2.4GHz Applications, by
Human-Guided Antenna Design
project is a joint effort between MERL Technology and Research Laboratories in collaboration with
Johosoken and with sponsorship from Denshihon.
ISM-Band and Short Range Device
Antennas | focus.ti.com/lit/an/swra046a/swra046a.pdf
This application report discusses antenna fundamentals and the various types of antennas used for short
range devices. Fundamentals are presented along with practical design principals. From Texas Instruments.
J-Pole Antenna Design
your own J Pole for any band, includes a calculator.
Log Periodic Antenna | fortunecity.com/skyscraper/jolt/345/LogCalc.html
A Java applet which calculates the dimensions and spacings of the elements needed to build a log
periodic antenna, given tao, sigma and the lower and upper cutoff frequencies.
800-280-8327 | Portsmouth,
Instructional article by Radio Works.
A Microstrip Edge-Fed Patch Antenna
with Inset Feed | sonnetusa.com/support/kb.asp?id=266
Application note from Sonnet.
Design for MIMO Communication Systems | ece.utexas.edu/~rheath/research/mimo/antenna
By Wireless Networking and Communications Group (WNCG).
Multi-Band Helical Antenna | ansoft.com/hfworkshop03/SooLiam_Ooi_Motorola.pdf
By SooLiam Ooi, Motorola Florida Corporate Research Lab.
N4UJW Antenna Design Lab
project contributions from all over the world - HF, VHF, UHF and more.
New Helix Antenna Design for the Mars Observer
By Mike Cook - AF9Y.
The Quagi Antenna Turns 30
By Wayne Overbeck, N6NB.
Simple Gain Antennas for the Beginner |
From ARRL, by Doug DeMaw, W1FB.
Standard Antenna Terms and Related
Formulas | ara-inc.com/PDF-RF/015-standard.pdf
From A.R.A. Antenna Research.
Design Formulas | seaveyantenna.com/catalog/p124/formulas.pdf
From Seavey Engineering Associates.
V / UHF Antenna Design
Application note from INGECOM.
Antenna Design | ipass.net/teara/kq3.html
Experiment with Yagi designs on your computer with YagiCad.