Earlier this week Fractal Antenna Systems announced production of "the world's first wideband omnidirectional antenna in a shrunken profile." The announcement did not provide any details on the bandwidth of the antenna, but did note that both existing and future "UHF+" wireless needs could be met with one antenna. It also said that the antenna will be available "at a fraction of the cost of other solutions." The company said that potential users included WiMax systems, public safety radios, DAS, Wifi, 3G/4G, pico/femtocell, and "many others."
Fractal Antenna Systems combined its fractal antenna technology with metamaterials to produce an antenna in a slim, short tube form factor that it said "allows unobtrusive placement in public areas."
I couldn't find any information on this antenna, called "UADB", on Fractal Antenna Systems web site but brochures are available for the larger UAB antenna, which covers from just above 225 MHz to 6 GHz and its smaller variant, the UAD, which works on frequencies from 400 MHz to 6 GHz.
For some background on Fractal Antenna System's work with metamaterials, see Fractal Metamaterial Monopole Antenna: The Metaclock Monopole.
Fractal's press release said additional variants of the UADB antenna can be tailored for specific customer needs. I'd like to see one for VHF TV reception.
In other metamaterial news, Rayspan announced it was awarded its second fundamental metamaterial air interface patent. Rayspan said its air interface technologies enable "ultra-compact implementations for broadband and multi-band antennas, filters, couplers, diplexers, and duplexers and are applicable to all wireless LAN and cellular handset applications."
Rayspan's founder and CTO, Dr. Maha Achour, is organizing a workshop on the topic Friday, May 28, at the International Microwave Symposium being held this week at the Anaheim Convention Center.
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Doug Lung is one of America's foremost authorities on broadcast RF technology. As vice president of Broadcast Technology for NBCUniversal Local, H. Douglas Lung leads NBC and Telemundo-owned stations’ RF and transmission affairs, including microwave, radars, satellite uplinks, and FCC technical filings. Beginning his career in 1976 at KSCI in Los Angeles, Lung has nearly 50 years of experience in broadcast television engineering. Beginning in 1985, he led the engineering department for what was to become the Telemundo network and station group, assisting in the design, construction and installation of the company’s broadcast and cable facilities. Other projects include work on the launch of Hawaii’s first UHF TV station, the rollout and testing of the ATSC mobile-handheld standard, and software development related to the incentive auction TV spectrum repack.
A longtime columnist for TV Technology, Doug is also a regular contributor to IEEE Broadcast Technology. He is the recipient of the 2023 NAB Television Engineering Award. He also received a Tech Leadership Award from TV Tech publisher Future plc in 2021 and is a member of the IEEE Broadcast Technology Society and the Society of Broadcast Engineers.