Stub (electronics)

About: Stub (electronics) is a research topic. Over the lifetime, 8172 publications have been published within this topic receiving 75018 citations.

Mobile communication terminal

Abstract: PURPOSE: A mobile communications terminal is provided to improve a specific absorption rate by adding an additional stub to form a predetermined interval from an antennal grounding part. CONSTITUTION: A stub(204) is formed at a predetermined distance apart from a grounding part. The stub is coupled with the grounding part in a first frequency band. The stub has the length corresponding to 1/4λ of the first frequency. A grounding part(202) is formed at an internal substrate(102) of a mobile communication terminal. The grounding part is connected to a grounding terminal of an antenna.

Feed for dual-band printed dipole antenna

Abstract: A dual-band printed dipole antenna is proposed for WLAN applications in the 2.4 and 5.2 GHz bands. A spur line was etched on the arms of the printed dipole to achieve the dual-band operation. The printed dipole antenna with a simplified matching network is proposed. The novel simplified feed structure consists of a pair of parallel metal strips printed on the opposite sides of the dielectric substrate and connected to a 50 /spl Omega/ microstrip line with a truncated ground plane. This feeding network does not require additional transition devices, such as a T-junction, power divider, tuning stub or microstrip-to-coplanar stripline balun.

Shared-Aperture Variable Inclination Continuous Transverse Stub Antenna Working at K - and Ka -Bands for Mobile Satellite Communication

Abstract: A dual-band shared-aperture variable inclination continuous transverse stub (VICTS) antenna is designed with good port isolation and a low profile. The operation bands, including 19.5–20.1 and 28.8–29.6 GHz, locate at the regulated bands for $K$ - and Ka -band mobile satellite communication. The design principle is “shared radiating aperture and independent feeding networks,” which means two feeding networks are integrated to share one radiating aperture. At the center frequencies of the two operation bands, that is, 19.8 and 29.2 GHz, the beam-scanning coverage in elevation is $38^{\circ } \times 2$ and $60^{\circ } \times 2$ , respectively. The relative bandwidths in $K$ - and Ka -bands are 3.0% and 2.7%, respectively. The maximal gains for the two bands are 24.33 and 28.52 dBi. Good port isolation greater than 90 dB at the lower band and greater than 20 dB at the higher band is obtained. A low profile of only 10 mm is achieved, that is, 0.65 and $0.97~\lambda _{0}$ , at the center frequencies. This article is a good candidate for the $K$ - and Ka -band mobile satellite communication under the restriction of cost and size.