bringing technology to life - Lorch Microwave

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General Company Information 3 Company Introduction 4 Ordering Information 5 Contents Ceramic Filters 27 General Information 28 Specifying Ceramic Filters 29 Ceramic Outline Drawings 30 Z-Pack Series Filter Products 6 General Filter Information 7-8 Filter Circuit Topology 9 Environmental Capabilities Cavity Filters 10-11 General Information 12-13 Specifying Cavity Filters 14-16 Cavity Outline Drawings 17 Waveguide General Discrete Components 18 General Information 19 Specifying Bandpass Filters 20 Specifying Lowpass Filters 21 Specifying Highpass Filters 22-26 Outline Drawings Integrated Assemblies 31-35 Tunable Filters 36-37 Tunable Bandpass Filters 38 Tunable Bandreject Filters 39 Digital Tunable Filters Tubular Filters 40 General Information 41 Specifying Bandpass Filters 42 Specifying Lowpass Filters 43-44 Tubular Filter Dimensions RF Products 45 Phase Comparators 46 Manual Phase Shifters 47 Digital Phase Shifters 48 Voltage Controlled Phase Shifters 49 Voltage Controlled Attenuators 50 Broad Band Mixers 1725 N. Salisbury Blvd. · PO Box 2828 · Salisbury, MD 21802 Phone 800.780.2169, 410.860.5100 · Fax 410.860.1949 www.lorch.com · lorchsales@lorch.com 5
0.5 dB Relative Bandwidth 4.5 4.0 N = 4 - 10 In many cases it is important to know more about the passband of a filter around the transition region between the passband and the stopband. The information provided serves as a design aid where passband flatness is an important criteria. Insertion Loss (dB) 3.5 3.0 2.5 2.0 1.5 N = 2 N = 3 The dissipative losses are greater at the bandedges than at center frequency. The passband of the filter becomes rounded at the bandedges. Since both the dissipative loss and the reflective losses are present in each filter, the ripple becomes superimposed on the rounded passband created by the dissipative losses. Because of this it is more useful to specify a relative bandwidth as shown than the equi-ripple bandwidth. The relationship between center frequency insertion loss and the +/- 5 degree phase linearity bandwidth is shown. This bandwidth is defined as the maximum deviation from a best-fit line drawn between two points on either side of the passband. The relationship between center frequency insertion loss and the 1.5:1 VSWR bandwidth is also given. The VSWR corresponds to a 14 dB Return Loss in a 50 Ohm system. Example: A 4 pole filter with a 3 dB bandwidth of 60 MHz and 3.5 dB insertion loss: 0.5 dB bandwidth is .64 x 60 = 38.4 MHz 1.0 dB bandwidth is .77 x 60 = 46.2 MHz +/- 5° phase bandwidth is .62 x 60 = 37.2 MHz 1.5:1 VSWR bandwidth is .85 x 60 = 51 MHz Note: When out-of-band attenuation is not specified, a 3 dB bandwidth tolerance of -0 / + 10% nominal will be used. The (%) tolerance on bandwidth will be inversely proportional to an actual decrease in bandwidth (MHz) vs. frequency. If a maximum bandwidth is required, please specify. Insertion Loss (dB) Insertion Loss (dB) 1.0 0.5 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 Fractional Bandwidth N = 2 N = 3 N = 4 - 10 0.5 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 1.0 dB Relative Bandwidth Fractional Bandwidth ± 5° Relative Phase Bandwidth N = 2 N = 4 - 10 N = 3 0.5 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.5:1 VSWR Bandwidth Fractional p4 Bandwidth Insertion Loss Ripple 0 dB Relative BW 1.5:1 VSWR Bandwidth 4.5 0.5 dB Relative BW 4.0 N = 2 N = 6 - 10 1.0 dB Relative BW 3.0 dB Relative BW Insertion Loss (dB) 3.5 3.0 2.5 2.0 1.5 N = 3 N = 4 N = 5 1.0 6 1725 N. Salisbury Blvd. · PO Box 2828 · Salisbury, MD 21802 Phone 800.780.2169, 410.860.5100 · Fax 410.860.1949 www.lorch.com · lorchsales@lorch.com 0.5 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 Fractional Bandwidth
Page 1 and 2: inging technology to life
Page 3: Part numbers are assigned at time o
Page 7 and 8: Nodal Circuit Bandpass Filter Mesh
Page 9 and 10: z 30 MHz to 40 GHz z 3 dB Bandwidth
Page 11 and 12: Cavity Filter Part Number Descripti
Page 13 and 14: CP, BRP Series L CF2 Series L H H .
Page 15 and 16: EZ3, EZ4, EZ5 Series and IZ3, IZ4,
Page 17 and 18: z 5 MHz to 7.5 GHz z 3 dB Bandwidth
Page 19 and 20: Bandwidth 3 dB 1 dB equi-ripple spe
Page 21 and 22: Connectors for Discrete Components
Page 23 and 24: Package 7 PC Board Mount - P SMA Co
Page 25 and 26: p23. Series HPD (Highpass) Package
Page 27 and 28: Filter Attenuation The attenuation
Page 29 and 30: z 30 - 5000 MHz z Leaded Surface Mo
Page 31 and 32: GPS-Preamplifiers The Lorch GPS pre
Page 33 and 34: S-Band Switch Bank The 2IFA-3000/85
Page 35 and 36: z 24 MHz to 3000 MHz z Direct Reado
Page 37 and 38: z 24 MHz to 2000 MHz z Direct Reado
Page 39 and 40: z 50 MHz to 20 GHz z Chebyshev Resp
Page 41 and 42: Lowpass Filter Part Number Descript
Page 43 and 44: LA - Filter Length vs. Frequency (M
Page 45 and 46: z 10 - 1000 MHz Frequency Range z 1
Page 47 and 48: z 1 - 4000 MHz Frequency Range z 10
Page 49 and 50: z 50 kHz - 4000 MHz Frequency Range

bringing technology to life - Lorch Microwave

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