A 320 GHz Octagonal Shorted Annular Ring On-Chip Antenna Array

A Circularly Polarized Annular-ring Patch Antenna with a Groundplane EBG Annular-slot Array

The effects of tuning the parameters of an annular-ring circular patch antenna with a cross-slot are analyzed and discussed. Then, based on this structure, a novel antenna with an electromagnetic bandgap cell system, which consists of a 4×4 annular-slot array in the groundplane, is designed and both numerically and experimentally evaluated. When compared to the annular-ring patch antenna on a g...

A Novel Wideband Antenna Array with Tightly Coupled Octagonal Ring Elements

A novel phased array antenna with wide bandwidth and wide scan angle is presented. The radiating aperture of the phased array consists of periodically and closely spaced octagonal ring elements. Tight capacitive coupling between adjacent elements is realized by interdigitating the end portions of the ring elements. To improve the impedance matching of the individual antenna elements over wide f...

Broadband Annular-Ring Dielectric Resonator Antenna

Ku Band Annular Ring Antenna on Different PBG Substrates

In this paper, two types of PBG structures, one is the periodic lattice of air holes on the substrate and the other is a periodic lattice of air holes through the substrate and the ground plane, have been incorporated on the FR4 substrate to improve the performance of a simple annular ring antenna operating in the TM31 mode. For Ku band FR4 has higher loss which is reduced by integrating the ai...

A77 GHz On-Chip Dipole Antenna with Etched Silicon Substrate

In this paper, a 77 GHz microstrip dipole antenna is integrated on a layered 11.4 μm SiO2 and a silicon substrate with thickness of 670 μm. The unbalanced microstrip line is balanced by using a lumped LC circuit balun to feed both of the dipole arms. To decrease the substrate loss and hence increase the antenna gain, Localized Backside Etch (LBE) module offered by IHP is utilized to etch the ar...