Low-Loss Microdisk-Based Delay Lines for Narrowband Optical Filters

2012 ◽  
Vol 24 (15) ◽  
pp. 1276-1278 ◽  
Author(s):  
Qing Li ◽  
A. A. Eftekhar ◽  
P. Alipour ◽  
A. H. Atabaki ◽  
S. Yegnanarayanan ◽  
...  
Keyword(s):  
Optical Filters ◽  
Delay Lines ◽  
Low Loss

scholarly journals Low-Loss and Wideband Acoustic Delay Lines

2019 ◽  
Vol 67 (4) ◽  
pp. 1379-1391 ◽  
Author(s):  
Tomas Manzaneque ◽  
Ruochen Lu ◽  
Yansong Yang ◽  
Songbin Gong
Keyword(s):  
Delay Lines ◽  
Low Loss

Optical delay lines based on optical filters

2001 ◽  
Vol 37 (4) ◽  
pp. 525-532 ◽  
Author(s):  
G. Lenz ◽  
B.J. Eggleton ◽  
C.K. Madsen ◽  
R.E. Slusher
Keyword(s):  
Optical Filters ◽  
Delay Lines ◽  
Optical Delay

Broadband 1-to-N Circuit Combiner for mm-wave Applications

2015 ◽  
Vol 2015 (1) ◽  
pp. 000776-000780
Author(s):  
Ali M. Darwish ◽  
H. Alfred Hung ◽  
Joe Qiu ◽  
Amr Ibraheem ◽  
Edward Viveiros
Keyword(s):  
Transmission Lines ◽  
High Frequency ◽  
Standing Waves ◽  
The Novel ◽  
Delay Lines ◽  
Low Loss ◽  
High Isolation ◽  
Wave Approach ◽  
Relative Bandwidth ◽  
Unique Approach

Packaging mm-wave and THz circuits, poses many challenges due to the sensitivity of the circuits to any mismatch at the input or output. Traditional interfaces for combining circuits produce significant losses, and standing waves. This paper presents a unique approach to combing circuits at high frequency that results in reflection cancellation, and significant isolation between the circuits. The novel ‘iπ-wave’ approach relies on introducing a set of resistors and 180/N delay lines; where N is the number of circuits to be combined. The approach enables combing 1-to-N circuits with low loss due to its use of low impedance transmission lines, and provides a relative bandwidth of 50 – 200%. The concept is studied theoretically using simulations, and demonstrated experimentally with a 1-to-4 divider. The concept is demonstrated with a 5 – 45 GHz combiner circuit on low loss Alumina substrate featuring high isolation, low loss, and excellent reflection cancellation. The concept can be implemented in hybrid circuits, or MMICs.

HF/UHF Low-Loss Nanosecond Variable Delay Lines.

1981 ◽  
Author(s):  
Donald E. Clark ◽  
William R. Hardell
Keyword(s):  
Variable Delay ◽  
Delay Lines ◽  
Low Loss
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