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Microwave
Bandpass YIG Tuned Filters of EYF series

Attention to customers - This product is discontinued from June 2005

Bandpass YIG Tuned Filters

  • Available frequency range 0.5 – 37.5 GHz
  • Broad bandwidth up to 4% approx.
  • Narrow bandwidth down to 0.1% approx.
  • Low losses
  • Coaxial, Micro-strip and Waveguide design available

Description

ELVA-1 YIG-tuned bandpass filters cover octave and multi-octave frequency band from 1 to 37.5 GHz. These YIG filters offer excellent tuning linearity, good frequency stability, excellent selectivity and off-resonance rejection. YIG filters with 3 dB bandwidths ranging from very narrow 0.1% from Central frequency to wide bandwidths up to 4%. Dual channel configurations of YIF filters with several MHz matching between channels are also available to order.  

We supply YIG filters as components only, or assembled with Analog (0-10V) / Digital (12-bit TTL) drivers. Please keep in mind that in first case you need very stable current source to control YIG filter.

Basic YIG filter products are 4–stage filters, which have selectivity of 24dB/octave from 3dB BW. BWXXdB at isolation level “xx”dB can be calculated as: 

BWXXdB = BW3dB * [(xx – (3+Insertion Loss))dB/24dB]

When you order YIG filter, please advise following terminology for YIG filters, that are represented on Fig. 1 below.

terminology for YIG filter

Fig. 1

We produce YIG filters “on request”, based on products line represented in Table 1 below. Before order, please contact us to advise required parameters.

Table 1

Model Frequency range, GHz Bandwidth 3dB, MHz Losses, dB Isolation, dB Spurious, dB Temp. ˚C Dimension, mm
 

4-stage, SMA connectors, standard BW

EYF-0.5-2.5

0.5 – 2.5

15 - 20

8.0

80

45

-10˚..+70˚C

25*25*25

EYF-01-02

1.0 – 2.0

15 - 30

5.0

75

45

-10˚..+70˚C

25*25*25

EYF-02-04

2.0 – 4.0

20 – 50

4.5

80

50

-10˚..+70˚C

25*25*25

EYF-02-08

2.0 – 8.0

30 – 60

6.0

80

50

-10˚..+70˚C

35*35*40

EYF-04-08

4.0 – 8.0

30 – 60

4.5

75

45

-10˚..+70˚C

35*35*40

EYF-04-12

4.0 – 12.0

30 – 60

7.0

75

45

-10˚..+70˚C

35*35*35

EYF-02-18

2.0 – 18.0

15 – 50

8.0

80

45

-10˚..+70˚C

35*35*44

EYF-08-18

8.0 – 18.0

40 – 60

8.0

70

50

-10˚..+70˚C

35*35*44

EYF-02-26

2.0 – 25.9

14 - 80

8.0

80

45

-10˚..+70˚C

35*35*44

EYF-18-26

18.0 – 26.0

50 – 80

8.0

75

45

-10˚..+70˚C

35*35*44

 

4-stage, Micro-strip, standard BW

EYF-01-02M

1.0 – 2.0

15 – 30

7.0

70

45

+5˚..+55˚C

30*30*20

EYF-02-04M

2.0 – 4.0

30 – 60

7.0

70

45

+5˚..+55˚C

30*30*20

EYF-04-08M

4.0 – 8.0

40 – 80

7.0

70

45

+5˚..+55˚C

30*30*25

 

2-stage, Waveguide, standard BW,  WR-42 flange

EYF-18-26W

18 – 26

40 – 80

7.0

50

25

-10˚..+75˚C

75*75*90

 

4-stage, Waveguide, standard BW,  WR-24 flange

EYF-26-37W

25.9-37.5

40 – 80

8.0

65

40

-10˚..+75˚C

50*50*60