(0)H01P:0/1:
IPC6
SECTION H - ELECTRICITY
WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
H01P
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<<   >>   H01P001/00 - H01P001/397  

H 01 P

 WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G 02 B; aerials H 01 Q; networks comprising lumped impedance elements H 03 H)
 

Note
 

In this subclass, the following expression is used with the meaning indicated:
 

-

 "waveguide type" as applied to transmission lines includes only high-frequency coaxial cables or Lecher lines, and as applied to resonators, delay lines, or other devices includes all devices having distributed inductance and capacitance.

 

 

 
 

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/ 00 Auxiliary devices (coupling devices of the waveguide type H 01 P 5/00)

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/ 02 • Bends; Corners; Twists  

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/ 04 • Fixed joints (line connectors H 01 R ; cable fittings H 02 G 15/00)  

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/ 06 • Movable joints, e.g. rotating joints  

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/ 08 • Dielectric windows (coupling devices for transit-time tubes H 01 J 23/36)  

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/ 10 • for switching or interrupting  

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/ 11 • • by ferromagnetic devices [3]  

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/ 12 • • by mechanical chopper  

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/ 14 • • by electric discharge devices (discharge devices H 01 J 17/64)  

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/ 15 • • by semiconductor devices [2]  

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/ 16 • for mode selection, e.g. mode suppression or mode promotion; for mode conversion (linking dissimilar lines or devices H 01 P 5/08) [3]  

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/ 161 • • sustaining two independent orthogonal modes, e.g. orthomode transducer [3]  

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/ 162 • • absorbing spurious or unwanted modes of propagation [3]  

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/ 163 • • specifically adapted for selection or promotion of the TE01 circular-electric mode [3]  

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/ 165 • for rotating the plane of polarisation [2]  

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/ 17 • • for producing a continuously rotating polarisation, e.g. circular polarisation [2]  

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/ 175 • • using Faraday rotators [3]  

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/ 18 • Phase-shifters (H 01 P 1/165 takes precedence; coupling devices with variable coupling factor H 01 P 5/04) [2]  

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/ 185 • • using a diode or a gas filled discharge tube [3]  

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/ 19 • • using a ferromagnetic device [3]  

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/ 195 • • • having a toroidal shape [3]  

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/ 20 • Frequency-selective devices, e.g. filters (resonators H 01 P 7/00)  

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/ 201 • • Filters for transverse electromagnetic waves (H 01 P 1/212, H 01 P 1/213, H 01 P 1/215, H 01 P 1/219 take precedence) [3]  

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/ 202 • • • Coaxial filters (cascaded coaxial cavities H 01 P 1/205) [3]  

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/ 203 • • • Strip line filters [3]  

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/ 205 • • • Comb or interdigital filters; Cascaded coaxial cavities (H 01 P 1/203 takes precedence) [3]  

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/ 207 • • Hollow waveguide filters (H 01 P 1/212, H 01 P 1/213, H 01 P 1/215, H 01 P 1/219 take precedence) [3]  

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/ 208 • • • Cascaded cavities; Cascaded resonators inside a hollow waveguide structure (H 01 P 1/205 takes precedence) [3]  

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/ 209 • • • comprising one or more branching arms or cavities wholly outside the main waveguide [3]  

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/ 211 • • • Waffle-iron filters; Corrugated structures [3]  

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/ 212 • • suppressing or attenuating harmonic frequencies (H 01 P 1/215 takes precedence) [3]  

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/ 213 • • combining or separating two or more different frequencies (H 01 P 1/215 takes precedence) [3]  

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/ 215 • • using ferromagnetic material [3]  

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/ 217 • • • the ferromagnetic material acting as a tuning element in resonators [3]  

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/ 218 • • • the ferromagnetic material acting as a frequency selective coupling element, e.g. YIG-filters [3]  

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/ 219 • • Evanescent mode filters [3]  

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/ 22 • Attenuating devices (dissipative terminating devices H 01 P 1/26)  

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/ 23 • • using ferromagnetic material [3]  

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/ 24 • Terminating devices  

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/ 26 • • Dissipative terminations  

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/ 28 • • Short-circuiting plungers (coupling devices with variable coupling factor H 01 P 5/04)  

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/ 30 • for compensation of, or protection against, temperature or moisture effects  

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/ 32 • Non-reciprocal transmission devices (H 01 P 1/02 to H 01 P 1/30 take precedence) [3]  

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/ 36 • • Isolators [2,3]  

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/ 365 • • • Resonance absorption isolators [3]  

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/ 37 • • • Field displacement isolators [3]  

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/ 375 • • • using Faraday rotators [3]  

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/ 38 • • Circulators [2,3]  

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/ 383 • • • Junction circulators, e.g. Y-circulators [3]  

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/ 387 • • • • Strip line circulators [3]  

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/ 39 • • • • Hollow waveguide circulators [3]  

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/ 393 • • • using Faraday rotators [3]  

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/ 397 • • • using non-reciprocal phase shifters (H 01 P 1/393 takes precedence) [3]  
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