The use of directional arrays in FM broadcasting has increased greatly in 30 years. Especially in the NCE reserved band, a DA can increase the operating power of a station significantly while still ...

The authors are president and vice president, respectively, of Communications Technologies Inc., a consultancy in Marlton, N.J. Fig. 1: Measured vertical (purple) and horizontal (blue) field strength ...

Antennas are mandatory for a product to connect via radio frequency. Obvious examples are cell phones, satellite communications, and even our garage-door openers. But the Internet of Things is ...

Prior to the digital television evolution, directional antennas at full-power television stations were primarily used to transmit a signal over a desired area as opposed to provide protection to other ...

The very mention of RF design is usually enough to scare all but the most confident designer. However, wireless specialists such as the company I work for, Nordic Semiconductor, have worked hard to ...

Apple’s iPhone 4 antenna issue represents a classic example of what can go wrong in modern antenna design. Put one in the wrong place, and a seemingly insignificant part can turn a cool new product ...

Wisteq, a Finnish company specializing in reusable RFID tags, says it has designed a new type of UHF antenna capable of performing especially well when the tag is attached to metal or objects ...