Measurements of the sideband conversion gain ratio of a millimeter-wave heterodyne sub-harmonic mixer using a fourier transform spectrometer

1997 ◽  
Vol 18 (8) ◽  
pp. 1547-1563 ◽  
Author(s):  
M. L. Oldfield ◽  
B. N. Ellison ◽  
B. J. Maddison ◽  
C. M. Mann ◽  
B. P. Moyna ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Millimeter Wave ◽  
Conversion Gain ◽  
Fourier Transform Spectrometer ◽  
Gain Ratio ◽  
Harmonic Mixer

scholarly journals An On-Chip Superconducting Kinetic Inductance Fourier Transform Spectrometer for Millimeter-Wave Astronomy

2020 ◽  
Vol 199 (3-4) ◽  
pp. 867-874
Author(s):  
F. B. Faramarzi ◽  
P. Mauskopf ◽  
S. Gordon ◽  
G. Che ◽  
P. Day ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Millimeter Wave ◽  
Kinetic Inductance ◽  
Fourier Transform Spectrometer ◽  
On Chip

scholarly journals A Compact Broadband Monolithic Sub-Harmonic Mixer Using Multi-Line Coupler

Electronics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 694
Author(s):  
Jincai Wen ◽  
Shengzhou Zhang ◽  
Lingling Sun
Keyword(s):  
Millimeter Wave ◽  
Conversion Gain ◽  
Central Frequency ◽  
Coupling Energy ◽  
Harmonic Mixer ◽  
Local Oscillation ◽  
Good Figure ◽  
Chip Size ◽  
Circuit Configuration ◽  
Operation Frequency

A compact broadband monolithic sub-harmonic mixer is presented in a 70 nm GaAs Technology for millimeter wave wireless communication application. The proposed mixer adopts a novel multi-line coupler structure; where the two-sided coupling energy of radio frequency (RF) and local oscillation (LO) signals are both collected and efficiently feed to anti-parallel diode pair (APDP) topology; resulting in broadband performance and compact chip size. As a comparison in the same circuit configuration; the five-line coupler can expand the bandwidth of the existing three-line coupler by 85% and reduce the area by 39.5% when the central frequency is 127 GHz. The measured conversion gain is −16.2 dB to −19.7 dB in a wide operation frequency band of 110–170 GHz. The whole chip size is 0.47 × 0.66 mm2 including test pads. The proposed mixer exhibits good figure-of-merits for D-band down-converter applications

scholarly journals The Rotational Spectrum of Propane Centrifugal Distortion Analysis

1985 ◽  
Vol 40 (5) ◽  
pp. 508-510 ◽  
Author(s):  
G. Bestmann ◽  
H. Dreizler ◽  
J. M. Vacherand ◽  
D. Boucher ◽  
B. P. van Eijck ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Millimeter Wave ◽  
Ground State ◽  
Fourier Transform Spectrometer ◽  
Rotational Spectrum ◽  
Centrifugal Distortion ◽  
Astrophysical Interest ◽  
Distortion Analysis ◽  
Wave Spectrometer

The ground state rotational spectrum of propane has been investigated between 6.4 and 26.5 GHz with a microwave Fourier transform spectrometer and between 140 and 300 GHz with a millimeter-wave spectrometer. High J transitions have been measured and fitted to a centrifugally distorted Hamiltonian including some sextic coefficients. The results of the analysis are sufficiently accurate for the prediction of all strong transitions of astrophysical interest.

Sign in / Sign up

Export Citation Format

Share Document