In this paper, the characteristics of the square-spiral antenna for broadband impedance bandwidth are investigated in the 5-GHz band. The design is based on the 1.25-turn square spiral antenna in a finite-sized ground with coaxial SMA feeding. Likewise, the corner of the proposed antenna is truncate
Characterization of a planar self-complementary square-spiral antenna in the THz region
โ Scribed by E. R. Brown; A. W. M. Lee; B. S. Navi; J. E. Bjarnason
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 280 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0895-2477
No coin nor oath required. For personal study only.
โฆ Synopsis
This paper describes a compact, self-complementary square-spiral antenna on a GaAs substrate with a broadside high-directivity (ฯณ29 dB) frequency-independent pattern when coupled through a silicon hyperhemisphere. The driving-point resistance undulates between ฯณ100 and 300โ from 200 GHz to 1 THz-much higher than the 72โ value from Booker's modified formula, but quite beneficial for coupling to high-impedance broadband devices.
๐ SIMILAR VOLUMES
## Abstract A DNA fragment of about 13 kb containing the human tyrosine hydroxylase (TH) promoter was previously isolated from a genomic DNA library and sequenced. The 11 kb from the transcription start of the human TH promoter was successively joined to the green fluorescent protein (GFP) to gener