Cost-effective 60-GHz antenna-package with end-fire radiation from open-ended post-wall waveguide for wireless file-transfer system

60-GHz switched-beam end-fire antenna module integrated with novel microstrip-to-slot transition

“…Full-wave simulation of the standalone passive element (without chips) gives a 7.7 dBi passive gain for each tapered slot antenna element of the module. This performance along with the demonstrated wide bandwidth characteristics of the proposed antenna module make the proposed solution more competitive than the post-wall waveguide design presented in [3]. To our knowledge, this solution is also the smallest size (10 mm × 10 mm) highest gain (19 dBi active and 7 dBi passive) end-fire antenna module on organic material with such a wide impedance bandwidth (beyond 55-67 GHz).…”

“…Significant efforts are being made in the development of both antenna-on-chip (AoC) and antenna-in-package (AiP) solutions [1]. Owing to the limited performance and increased die cost of on-chip antennas, numerous AiP solutions realized in polytetrafluoroethylene (PTFE), glass cloth resin, low-temperature co-fired ceramics (LTCC) and liquid crystal polymer (LCP) susbtrates have recently been proposed in [2], [3], [4], and [5] respectively. In [2], [4], and [5] the antenna element has a broadside radiation pattern whereas Suga et.…”

“…In [2], [4], and [5] the antenna element has a broadside radiation pattern whereas Suga et. al proposed a post-wall waveguide aperture antenna with endfire radiation in [3]. The post-wall waveguide antenna package integrating two antenna elements and a recessed cavity for a CMOS chip occupies a volume of 14.4 × 14.4 × 1.0 mm 3 while achieving only 2.2 dBi gain per antenna element in the 59-66 GHz frequency range.…”

High precision measurement method for dielectric film materials by a novel V band cavity resonator

“…Millimeter wave engineers require low Er dielectric films with excellent characteristics, and material developers need accurate evaluation techniques of complex permittivity to develop new dielectric film materials for millimeter wave cir cuits [1]- [3]. In millimeter wave region, several measurement method of complex permittivity of dielectric materials have been reported so far [4]- [6].…”