Class   333	WAVE TRANSMISSION LINES AND NETWORKS
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1

PLURAL CHANNEL SYSTEMS

1.1

. (1 indent ) Nonreciprocal gyromagnetic type (e.g., circulators)

2

. (1 indent ) With automatic control

3

.. (2 indent ) Line substitution

4

. (1 indent ) With balanced circuits

5

.. (2 indent ) Plural balanced circuits

100

. (1 indent ) Having branched circuits

101

.. (2 indent ) Including switching means

102

... (3 indent ) Having gyromagnetic operating means

103

... (3 indent ) Having semiconductor operating means

104

.... (4 indent ) Using TEM lines

105

... (3 indent ) Having mechanical switching means

106

.... (4 indent ) Using rotary switching means

107

....• (5 indent ) For TEM lines

108

.... (4 indent ) For waveguide

109

.. (2 indent ) Using directional coupler

110

... (3 indent ) For providing frequency separation

111

... (3 indent ) For providing adjustable coupling

112

... (3 indent ) Having lumped parameters or impedances

113

... (3 indent ) Having parallel-guide waveguide

114

... (3 indent ) Having crossed-guide waveguide

115

... (3 indent ) Having TEM lines

116

.... (4 indent ) Using stripline

117

.. (2 indent ) Including hybrid-type network

118

... (3 indent ) Having lumped parameters or impedances

119

.... (4 indent ) Using transformer coil

120

... (3 indent ) Having hybrid ring junction

121

... (3 indent ) Having hybrid-T (e.g., magic-T)

122

.... (4 indent ) Using waveguide

123

... (3 indent ) Having coaxial element

124

.. (2 indent ) With impedance matching

125

... (3 indent ) Including long line element

126

.... (4 indent ) For providing frequency separation

127

.... (4 indent ) Using TEM lines

128

....• (5 indent ) Stripline

129

... (3 indent ) For providing frequency separation

130

... (3 indent ) Using resistors only

131

... (3 indent ) Using coupled windings

132

.. (2 indent ) For providing frequency separation

133

... (3 indent ) Utilizing electromechanical transducer

134

... (3 indent ) Utilizing long line element

135

.... (4 indent ) Including waveguide element

136

.. (2 indent ) Including long line element

137

... (3 indent ) Using waveguide

12

TRANSMISSION LINE INDUCTIVE OR RADIATION INTERFERENCE REDUCTION SYSTEMS

13

RESONATOR-TYPE BREAKDOWN DISCHARGE SYSTEMS (E.G., T-R OR R-T SYSTEMS)

14

AMPLITUDE COMPRESSION AND EXPANSION SYSTEMS (I.E., COMPANDERS)

15

PILOT LINE-CONTROLLED SYSTEMS

16

PILOT CURRENT-CONTROLLED SYSTEMS

17.1

AUTOMATICALLY CONTROLLED SYSTEMS

17.2

. (1 indent ) Limiting of amplitude

17.3

. (1 indent ) Impedance matching

18

. (1 indent ) With control of equalizer and/or delay network

19

DIFFERENTIATING OR INTEGRATING SYSTEMS

20

WAVE-SHAPING

21R

WAVE MODE CONVERTERS

21A

. (1 indent ) Polarization converters

22R

DISSIPATING TERMINATIONS FOR LONG LINES

22F

. (1 indent ) Fluid-cooling

23

ARTIFICIAL LINES

24R

COUPLING NETWORKS

24.1

. (1 indent ) Nonreciprocal gyromagnetic type (e.g., directional phase shifters)

24.2

.. (2 indent ) Nonreciprocal attenuators or isolators

24.3

.. (2 indent ) Nonreciprocal polarization rotators

25

. (1 indent ) Balanced to unbalanced circuits

26

.. (2 indent ) Having long line elements

27

. (1 indent ) Interlinking long line

28R

. (1 indent ) Equalizers

28T

.. (2 indent ) Audio tone control

138

. (1 indent ) Delay lines including a lumped parameter

139

.. (2 indent ) Variable parameter

140

.. (2 indent ) Physical structure

141

. (1 indent ) Delay lines including elastic bulk wave propagation means

142

.. (2 indent ) Multipath propagation

143

... (3 indent ) Spurious signal reduction

144

.. (2 indent ) Variable delay

145

.. (2 indent ) Nonuniform propagation path

146

.. (2 indent ) Helical propagation path

147

.. (2 indent ) Propagation path has significant chemical or physical properties

148

.. (2 indent ) Including magnetostrictive transducers

149

.. (2 indent ) Significant transducer structure

150

. (1 indent ) Delay lines including elastic surface wave propagation means

151

.. (2 indent ) Spurious signal or mode cancellation means

152

.. (2 indent ) Variable delay

153

.. (2 indent ) Including discontinuities within propagation means

154

.. (2 indent ) Significant transmitting or receiving transducer structure

155

.. (2 indent ) Temperature stabilization or compensation

156

. (1 indent ) Delay lines including long line elements

157

.. (2 indent ) Waveguide

158

... (3 indent ) Including ferrite means

159

... (3 indent ) Having mechanically movable delay control means

160

.. (2 indent ) Coaxial line

161

.. (2 indent ) Planar line structure (e.g., stripline)

162

.. (2 indent ) Helical line structures and lines developed from a helical structure

163

... (3 indent ) Having plural concentric helices

164

.. (2 indent ) Control of delay with semiconductive means

32

. (1 indent ) With impedance matching

33

.. (2 indent ) Having long line elements

34

... (3 indent ) Tapered

35

... (3 indent ) Quarter-wave transformer type

165

. (1 indent ) Frequency or time domain filters and delay lines utilizing charge transfer devices

166

. (1 indent ) Time domain filters

167

. (1 indent ) Frequency domain filters utilizing only lumped parameters

168

.. (2 indent ) Including recurrent sections

169

.. (2 indent ) Wheatstone or lattice type

170

.. (2 indent ) Bridge type

171

... (3 indent ) With variable response

172

.. (2 indent ) RC or RL type

173

.. (2 indent ) Synchronous filters

174

.. (2 indent ) With variable response

175

.. (2 indent ) Resonant, discrete frequency selective type

176

... (3 indent ) Including specific frequency rejection means

177

.. (2 indent ) Transformer coupled

178

... (3 indent ) Including bandwidth adjusting, shaping, or stabilization means

179

... (3 indent ) With permeability tuning means

180

... (3 indent ) With variable coupling means

181

.. (2 indent ) Smoothing type (e.g., direct current power supply filters or decoupling filters)

182

... (3 indent ) Feedthrough type

183

.... (4 indent ) Resiliently mounted components

184

... (3 indent ) Monolithic structure

185

.. (2 indent ) Having significant physical structure

186

. (1 indent ) Electromechanical filter

187

.. (2 indent ) Using bulk mode piezoelectric vibrator

188

... (3 indent ) With means for varying response

189

... (3 indent ) Plural coupled vibrators

190

.... (4 indent ) Lattice structure

191

.... (4 indent ) Monolithic structure

192

....• (5 indent ) With electrical coupling

193

.. (2 indent ) Using surface acoustic waves

194

... (3 indent ) Including spurious signal prevention or reduction means

195

... (3 indent ) With wave-modifying means (e.g., reflectors, resonators, diffractors, multistrip couplers, etc.)

196

... (3 indent ) With response weighting means

197

.. (2 indent ) Plural mechanically coupled bar, plate, or rod-type resonating means

198

... (3 indent ) Plural interresonator coupling paths

199

... (3 indent ) Plural mechanically coupled disk resonators

200

.. (2 indent ) Reed- or fork-type resonators

201

.. (2 indent ) Magnetostrictive wave transmission path

202

. (1 indent ) Wave filters including long line elements

203

.. (2 indent ) Digital structure

204

.. (2 indent ) Stripline or microstrip

205

... (3 indent ) Tunable

206

.. (2 indent ) Coaxial

207

... (3 indent ) Tunable

208

.. (2 indent ) Waveguide

209

... (3 indent ) Tunable

210

... (3 indent ) Including evanescent guide sections

211

... (3 indent ) Including frequency selective absorbing means

212

... (3 indent ) Including directly coupled resonant sections

24C

. (1 indent ) Capacitive coupling

213

NEGATIVE RESISTANCE OR REACTANCE NETWORKS OF THE ACTIVE TYPE

214

. (1 indent ) Simulating specific type of reactance

215

.. (2 indent ) Using gyrator

216

. (1 indent ) Having negative impedance

217

.. (2 indent ) Providing negative resistance

81R

ATTENUATORS

81A

. (1 indent ) Coaxial or microstrip

81B

. (1 indent ) Waveguide type

218

FREQUENCY MULTIPLIERS

219

RESONATORS (DISTRIBUTED PARAMETER TYPE)

219.1

. (1 indent ) Dielectric type

219.2

. (1 indent ) Magnetic type

220

. (1 indent ) Open wire or Lecher line

221

.. (2 indent ) With tuning

222

. (1 indent ) Coaxial or shielded

223

.. (2 indent ) With tuning

224

... (3 indent ) Having movable element

225

.... (4 indent ) Using movable shorting means

226

.... (4 indent ) Using plunger, rod, or piston

227

. (1 indent ) Cavity resonator

228

.. (2 indent ) With mode suppressor

229

.. (2 indent ) With temperature compensation

230

.. (2 indent ) With coupling

231

.. (2 indent ) With tuning

232

... (3 indent ) Having movable element

233

.... (4 indent ) Using movable wall

234

. (1 indent ) Temperature compensated

235

. (1 indent ) With tuning

236

LONG LINES

237

. (1 indent ) Leaky lines

238

. (1 indent ) Strip type

239

. (1 indent ) Waveguide type

240

.. (2 indent ) Surface wave

241

.. (2 indent ) Flexible

242

.. (2 indent ) Circular or helical structure

243

. (1 indent ) Shielded type

244

.. (2 indent ) Including spaced, electrically compensated, internal support means

245

LONG LINE ELEMENTS AND COMPONENTS

246

. (1 indent ) Strip type

247

.. (2 indent ) Semiconductor mounts

248

. (1 indent ) Waveguide elements and components

249

.. (2 indent ) Bend

250

.. (2 indent ) Active element mounting

251

.. (2 indent ) Mode suppressor

252

.. (2 indent ) Window

253

.. (2 indent ) Including variable impedance

254

.. (2 indent ) Connectors and interconnections

255

... (3 indent ) Quick disconnect

256

... (3 indent ) Movable

257

.... (4 indent ) In line

258

.. (2 indent ) Switch

259

... (3 indent ) Mechanically movable

260

. (1 indent ) Connectors and interconnections

261

.. (2 indent ) Rotary coupling

262

. (1 indent ) Switch

263

. (1 indent ) Including variable impedance

99R

MISCELLANEOUS

99S

. (1 indent ) Superconductive

99PL

. (1 indent ) Plasma

99MP

. (1 indent ) Multipactor applications

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