The ultra-wideband, omnidirectional circular ring antenna has a height of 0.047 times the low-frequency wavelength and a width of 0.19 times the wavelength, offering an impedance bandwidth of 12:1.

Today, wireless technology has reached a point that has no choice other than using only one compact and multiband antenna to simultaneously answer all the demands of users at different frequencies. A ...

Part of the SlimLine range of shelving antennas, the A7030C with its innovative ‘Array-Ability’ design offers a highly scalable and customised antenna solution for a wide range of RFID deployments. At ...

Comparison of near-field beams between the uniform circular array (UCA) and uniform concentric circular array (UCCA), where a series of UCAs are employed to enhance the focusing ability to enable ...

Phased array technology is far from new. Phased-array antennas have been used for decades in a variety of military applications. Now, however, their use in 5G systems in the Band 2 frequency range is ...

In Part 1, we introduced the phased array concept, beam steering and array gain. In Part 2, we presented the concept of grating lobes and beam squint. In this section, we begin with a discussion of ...

Evolving communication systems are driving developments in the RF/microwave industry. The large umbrella of 5G focuses on supporting three main technologies: enhanced mobile broadband, which is the ...