| Records |
| Author |
Brown, E. R.; Lee, A. W. M.; Navi, B. S.; Bjarnason, J. E. |
| Title |
Characterization of a planar self-complementary square-spiral antenna in the THz region |
Type |
Journal Article |
| Year |
2006 |
Publication |
Microwave and Optical Technology Letters |
Abbreviated Journal |
Microwave Opt Technol Lett |
| Volume |
48 |
Issue  |
3 |
Pages |
524-529 |
| Keywords |
optical antennas; square spiral antenna; self complementary THz; photomixing; lens; method of moments; geometric optics; physical optics |
| Abstract |
This paper describes a compact, self-complementary square-spiral antenna on a GaAs substrate with a broadside high-directivity (~9 dB) frequency-independent pattern when coupled through a silicon hyperhemisphere. The driving-point resistance undulates between ~00 and 300Ω from 200 GHz to 1 THz—much higher than the 72Ω value from Booker's modified formula, but quite beneficial for coupling to high-impedance broadband devices |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
no |
| Call Number |
RPLAB @ gujma @ |
Serial |
736 |
| Permanent link to this record |
| |
|
| |
| Author |
McDonald, P.C.; Jaramillo, E.; Baudouy, B. |
| Title |
Thermal design of the CFRP support struts for the spatial framework of the Herschel Space Observatory |
Type |
Journal Article |
| Year |
2006 |
Publication |
Cryogenics |
Abbreviated Journal |
Cryogenics |
| Volume |
46 |
Issue |
4 |
Pages |
298-304 |
| Keywords |
|
| Abstract |
|
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0011-2275 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
no |
| Call Number |
RPLAB @ s @ |
Serial |
442 |
| Permanent link to this record |
| |
|
| |
| Author |
Yang, Z. Q.; Hajenius, M.; Baselmans, J. J. A.; Gao, J. R.; Voronov, B.; Gol’tsman, G. N. |
| Title |
Reduced noise in NbN hot-electron bolometer mixers by annealing |
Type |
Journal Article |
| Year |
2006 |
Publication |
Supercond. Sci. Technol. |
Abbreviated Journal |
Supercond. Sci. Technol. |
| Volume |
19 |
Issue |
4 |
Pages |
L (9 to 12) |
| Keywords |
NbN HEB mixers |
| Abstract |
We find that the sensitivity of heterodyne receivers based on superconducting hot-electron bolometers (HEBs) increases by 25–30% after annealing at 85 °C in vacuum. The devices studied are twin-slot antenna coupled mixers with a small NbN bridge of 1 × 0.15 µm2. We show that annealing changes the device properties as reflected in sharper resistive transitions of the complete device, apparently reducing the device-related noise. The lowest receiver noise temperature of 700 K is measured at a local oscillator frequency of 1.63 THz and a bath temperature of 4.3 K. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0953-2048 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
no |
| Call Number |
|
Serial |
1456 |
| Permanent link to this record |
| |
|
| |
| Author |
Koshelets, V. P.; Khudchenko, A. V. |
| Title |
Analysis of spectral characteristics of a superconducting integrated receiver |
Type |
Journal Article |
| Year |
2006 |
Publication |
J. Communications Technol. Electron. |
Abbreviated Journal |
|
| Volume |
51 |
Issue |
5 |
Pages |
596-603 |
| Keywords |
|
| Abstract |
|
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
no |
| Call Number |
RPLAB @ s @ mix_SIR |
Serial |
400 |
| Permanent link to this record |
| |
|
| |
| Author |
Koshelets, V. P.; Khudchenko, A. V. |
| Title |
Analysis of spectral characteristics of a superconducting integrated receiver |
Type |
Journal Article |
| Year |
2006 |
Publication |
J. Communications Technol. Electron. |
Abbreviated Journal |
|
| Volume |
51 |
Issue |
5 |
Pages |
596-603 |
| Keywords |
SIR |
| Abstract |
|
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
1064-2269 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
no |
| Call Number |
|
Serial |
526 |
| Permanent link to this record |
