Abstract:
a main body for attaching a connector in the opposite of an external wall so as to match with a measuring unit during measuring a microwave feature; an internal cavity for putting on an Au-pad on an edge-coupled line of a bandpass filter executed on a single board, and pressing a pin of a K-connector contacted with the pad to thereby show the cavity feature very well; and a cover for preventing liquid nitrogen molecule from being flowed during a low-temperature measure by mounting a plurality of springs in order to fix the internal cavity and add pressure to the connecting board equally.
Abstract:
The method consists of the steps of; forming a circuit pattern on a crystalline substrate by using a metal mask fabricated by the laser ablation method, forming a contact surface by using a conducting metal on the bottom surface of the crystalline substrate, and forming an ohmic contact by annealing in the oxygen atmosphere.
Abstract:
The method reduces the signal/noise ratio by integration of filter, and improves the development of oscillator. The method includes the 1st process which deposes the high temperature superconducting layer (20) by pulsed laser deposition method, the 2nd process which forms the metal layer (30) for protection of field leakage, the 3rd process which forms the resonator pattern and deposes the insulating protection layer (40), and the 4th process which forms the communcation high temperature superconducting ring resonator by etching of high temperature superconducting layer (20).
Abstract:
본 발명은 고온초전도 고주파여과기의 저온고주파 특성 측정용 고주파하우징의 제작방법에 관한 것으로, 고주파설계 시스템(EEsof)으로, 고주파용(-10GHz)고온초전도 대역통과 여과기의 최적 회로패턴을 설계한후, MgO, LaAIo 3 등의 유전체 단결정기판위에 미세형상화(micro-patterning)하여 회로패턴을 구형하고, 자체설계제작한(self-made)고주파 하우징에 넣어 고주파 부품(components)의 형태로 제작한 후, 제작한 고온초전도 대역통과 여파기의 고주파특성(S 11 ,S 21 등의 S-parameter, 양호도(Q-factor)등)을 실제로 측정하는데 사용하고자 하는 고온초전도 고주파여파기의 저온고주파 특성측정용 고주파하우징의 제작방법을 제공하는데 있다.
Abstract:
A fabrication method of superconductor band pass filter is provided to improve accuracy of patterns. The method comprises the steps of: forming a superconductor film(5) on LaAlO3 substrate(2) using PLD(pulse laser deposition) method; spin-coating a photoresist film on the superconductor film(5) and hard baking; milling the photoresist film and the superconductor film(5) using ECT(electron cyclotron resonance); removing an Ag-paste formed in rear of the substrate(2) and polishing; and forming an input/output terminals(3) in the rear surface of the substrate. Thereby, it is possible to improve accuracy of circuit pattern.
Abstract:
receptacles for storing cooling liquid nitrogen for cooling various components including an insulating dewar; the insulating dewar made of a good thermal conductivity and having a high frequency housing on the an interior thereof, at which a vacuum state is easily maintained in order to avoid an influence on the components due to the cooling liquid nitrogen, the insulating dewar being coupled to the outside by ways of various cables and pipe lines; a base plate installed on an upper portion of the receptacles, for supporting the various cables and pipe lines as well as the insulating dewar.